A device for edge pressing and edge pressing effect testing of crossflow heat exchanger fins.

Abstract

This application relates to the field of heat exchanger fin pressing technology, specifically disclosing a device for pressing and pressing fins of a cross-flow heat exchanger and for detecting the pressing effect. The device includes a rotating rod and a pressure rod mounted on a mounting frame. The rotating rod comprises a first rotating section, a second rotating section, and a third rotating section. Pressure plates are provided at the ends of the first and third rotating sections. Lower pressure rollers are located near the pressure plates on the first and third rotating sections. An upper pressure roller is located on the pressure rod. A driving mechanism, an adjusting mechanism, and a detection component are mounted on the mounting frame. The driving mechanism clamps and moves the heat exchanger fins. The pressure plates on the first and third rotating sections bend and press the two side walls of the heat exchanger fins. The adjusting mechanism can adjust the position of the pressure plates, adjusting the number of pressure plates that can contact both sides of the heat exchanger fins to adjust the bending angle of the heat exchanger fins. The detection component can detect and correct the bending effect of the heat exchanger fins.

Description

Technical Field

[0001] This application relates to the field of heat exchanger fin pressing technology, and in particular to a device for pressing fins of crossflow heat exchangers and testing the pressing effect. Background Technology

[0002] Crossflow heat exchangers are widely used in heating, ventilation, and air conditioning (HVAC), automotive radiators, industrial waste heat recovery, and electronic equipment cooling due to their compact structure and high efficiency. Their core consists of a large number of thin metal heat exchange fins stacked together, forming cross-flow fluid channels between the fins. Precise edge pressing of the heat exchange fins is crucial; it significantly enhances the inter-fin sealing, prevents fluid leakage and crossflow, while also improving the overall structural strength and rigidity, ensuring long-term reliable operation of the heat exchanger under high pressure differentials and vibration environments, and improving heat exchange efficiency.

[0003] A current-technical device for edge pressing and edge pressing effect testing of crossflow heat exchanger plates typically consists of a hydraulic or pneumatic drive system, upper and lower edge pressing dies, positioning fixtures, and a conveying mechanism. The drive system provides the pressure required for edge pressing; the upper and lower dies are designed according to the contour of the heat exchanger plate and engage under pressure to complete the plastic deformation of the edge pressing; the positioning fixtures ensure the precise position of the heat exchanger plate during the edge pressing process; and the conveying mechanism realizes automatic feeding, positioning, and unloading of the heat exchanger plate to improve the degree of automation and efficiency of production.

[0004] Regarding the aforementioned technologies, most equipment can only apply pressure to the edge of the heat exchanger plate on one side or sequentially, and cannot simultaneously perform synchronous pressing operations on the two symmetrical edges of the heat exchanger plate, resulting in reduced production efficiency. Furthermore, the angle of the existing pressing die is usually fixed, and changing the pressing die requires machine shutdown and is very complicated. It cannot adapt to the flexible adjustment requirements of the pressing angle of the heat exchanger plate under different design needs or specific working conditions in a timely manner, and it cannot detect and correct the bending effect. Therefore, improvements are needed. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a device for edge pressing and edge pressing effect testing of crossflow heat exchanger plates.

[0006] This application provides a device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates, which adopts the following technical solution:

[0007] A device for edge pressing and edge pressing effect testing of crossflow heat exchanger fins includes a mounting frame. A first mounting plate and a second mounting plate are vertically mounted on the mounting frame. Multiple sets of rotating rods and multiple sets of pressure rods are rotatably arranged at intervals between the first and second mounting plates along the length of the mounting frame. The rotating rods and pressure rods are arranged in a one-to-one correspondence, with the pressure rods positioned above the rotating rods. Each rotating rod includes a first rotating section, a second rotating section, and a third rotating section. The second rotating section is located between the first and third rotating sections. Pressure plate heads are symmetrically arranged at the far ends of the first and third rotating sections. Multiple pressure plate heads are all frustum-shaped and their upper bottoms are all located close to the second rotating section. Along the length of the mounting frame, the angle between the sides of the multiple pressure plate heads and the horizontal plane gradually increases. Lower pressure plate rollers are provided near the inner side of the pressure plate heads in the first and third rotating sections. Multiple upper pressure plate rollers are provided on the multiple pressure rods corresponding to the multiple lower pressure plate rollers. A drive mechanism for synchronously rotating the multiple rotating rods and multiple pressure rods is provided on the first mounting plate. Multiple adjustment mechanisms are provided on both the first and second mounting plates for adjusting the positions of the two pressure plate heads on the same rotating rod to move closer or further apart, and to adjust the pressing angles accordingly.

[0008] Between the first and second mounting plates, there are multiple sets of detection components for detecting the bending effect of the heat exchanger fins. The detection components include connecting rods, mounting strips, laser emitters, and light intensity sensors. The connecting rods are horizontally positioned between the first and second mounting plates. There are two sets of mounting strips, which are vertically positioned at both ends of the connecting rods. There are two sets of laser emitters, which are vertically positioned on one of the two sets of mounting strips. The light intensity sensors are positioned on the other set of mounting strips, corresponding to the two sets of laser emitters.

[0009] By adopting the above technical solution, the drive mechanism in this application can drive the rotating rod and the pressure rod to rotate synchronously. After the heat exchanger plates enter between the rotating rod and the pressure rod, the rotation of the lower pressure plate roller and the upper pressure plate roller clamps and moves the heat exchanger plates. In this application, pressure plate heads are symmetrically arranged at the ends of the first and third rotating sections that are far apart from each other. First, the adjustment mechanism is used to make the pressure plate heads at corresponding angles move away from each other. When the two sides of the heat exchanger plates move to the pressure plate heads, the adjustment mechanism is used to make the pressure plate heads at corresponding angles move closer to each other. Since the pressure plate heads are all frustum-shaped, and under the limitation of the lower pressure plate roller and the upper pressure plate roller, after the side of the heat exchanger plate contacts the inclined side wall of the pressure plate head, the side of the heat exchanger plate begins to bend until it contacts the side wall of the pressure plate head. The inclination angles are kept consistent, thus enabling simultaneous bending and pressing of the two side walls of the heat exchanger plates. Simultaneous bending of the two side walls with pressure plates also avoids residual stress or slight displacement caused by step-by-step pressing, reducing the symmetry and sealing uniformity of the heat exchanger plates, thereby improving the forming effect of the heat exchanger plates. In this application, the angle between the sides of the multiple sets of pressure plate heads and the horizontal plane gradually increases. Therefore, when the multiple sets of adjustment mechanisms in this application adjust the positions of the multiple sets of pressure plate heads respectively, increasing or decreasing the number of pressure plate heads that can contact both sides of the heat exchanger plates, and then bending and pressing the sides of the heat exchanger plates, the bending angle of the pressure plates of the heat exchanger plates can be adjusted, thereby adapting to more design requirements and flexibly adjusting the pressing angle of the heat exchanger plates.

[0010] Since each detection component contains two sets of laser emitters arranged vertically, after bending the heat exchanger plate at a certain angle, if one set of the light emitted by the two sets of laser emitters is received by the light intensity sensor while the other set is not, it indicates that the bending angle of the heat exchanger plate is within the allowable error range. If the light emitted by both sets of laser emitters is received by the light intensity sensor, it indicates that material rebound may have occurred on both sides of the heat exchanger plate, requiring another bending. In this case, the entire device will reverse its operation to perform a second bending correction on both sides of the heat exchanger plate that has not been bent to the correct position.

[0011] Optionally, the drive mechanism includes a first drive assembly and a second drive assembly. The first drive assembly includes a drive motor, sprockets, and a chain. A third mounting plate is provided on the mounting frame, and the third mounting plate is located on the side of the first mounting plate away from the second mounting plate. The drive motor is fixedly mounted on the side of the third mounting plate away from the first mounting plate. Multiple sets of sprockets are provided, and each set of sprockets is fixedly sleeved on the ends of multiple sets of first rotating segments away from the third rotating segments, and rotatably mounted between the first mounting plate and the third mounting plate. The output shaft of the drive motor passes through the third mounting plate and is fixedly connected to one set of sprockets. The chain is sleeved on the multiple sets of sprockets. The second drive assembly is provided with the same as the first drive assembly and is mounted on multiple sets of pressure rods to drive the multiple sets of pressure rods to rotate synchronously.

[0012] By adopting the above technical solution, the drive motor is started, and the drive motor drives one of the multiple sets of sprockets to rotate. Since the multiple sets of sprockets are all engaged with the chain, they can drive the multiple sets of sprockets to rotate synchronously. The sprockets synchronously drive the first rotating segment to rotate, thereby realizing the rotation of the rotating rod. The first drive assembly is set with the second drive assembly, which can realize the synchronous rotation of multiple sets of pressure rods.

[0013] Optionally, the feeding end of the mounting frame is provided with a feeding guide roller group, and the discharging end of the mounting frame is provided with a discharging guide roller group. The feeding guide roller group includes an upper guide roller and a lower guide roller. The upper guide roller is arranged with the lower guide roller and is positioned above the lower guide roller. Both the upper and lower guide rollers are rotatably arranged between the first mounting plate and the second mounting plate. The first mounting plate is rotatably arranged with a feeding wheel group and a discharging wheel group. The feeding wheel group includes an upper feeding wheel and a lower feeding wheel. Both the upper and lower feeding wheels are rotatably arranged on the side of the first mounting plate away from the second mounting plate. The upper feeding wheel meshes with the chain in the first drive assembly, and the lower feeding wheel meshes with the chain in the second drive assembly. One end of the upper guide roller passes through the first mounting plate and is fixedly connected to the upper feeding wheel. One end of the lower guide roller passes through the first mounting plate and is fixedly connected to the lower feeding wheel. The feeding guide roller group is arranged with the discharging guide roller group, and the feeding wheel group is arranged with the discharging wheel group.

[0014] By adopting the above technical solution, since the upper feed roller meshes with the chain in the first drive assembly, and the lower feed roller meshes with the chain in the second drive assembly, the drive motor can drive the upper and lower guide rollers to rotate synchronously, realizing the extrusion and conveying of the heat exchanger plates before bending and pressing. This improves the stability of the heat exchanger plates during movement, avoids the impact on the heat exchanger plates that are about to be bent and pressed, and also avoids the situation where the heat exchanger plates have slight displacement due to insufficient power when the two sides of the heat exchanger plates abut against the side wall of the pressure plate head. This further improves the bending and pressing effect of the heat exchanger plates. The feeding guide roller group is set with the discharging guide roller group, the feeding wheel group is set with the discharging wheel group, and the guide roller group is set at the discharge end of the mounting frame, which can further improve the stability of the heat exchanger plates and avoid the impact on the heat exchanger plates that are about to be fully bent and pressed due to their own weight after the edge pressing and bending.

[0015] Optionally, a middle lower pressure roller is provided on the second rotating section, and a middle upper pressure roller is provided on the pressure rod corresponding to the middle lower pressure roller. The middle lower pressure roller is set in the same way as the middle upper pressure roller.

[0016] By adopting the above technical solution, the middle lower pressure roller and the middle upper pressure roller can squeeze and convey the middle part of the heat exchanger plate while maintaining the stability of the middle part of the heat exchanger plate, thus avoiding the internal stress of the heat exchanger plate changing due to the bending on both sides of the heat exchanger plate, and the occurrence of wrinkles in the middle.

[0017] Optionally, the adjustment mechanism includes a first adjustment component and a second adjustment component. The first adjustment component includes a first cylinder, a second cylinder, a movable block, a bearing, a sleeve, and a moving structure. A fourth mounting plate is provided on the mounting bracket, and the fourth mounting plate is located on the side of the second mounting plate away from the first mounting plate. The first cylinder is mounted on a third mounting plate, and the second cylinder is mounted on the fourth mounting plate. Two sets of movable blocks are provided, and the two sets of movable blocks are respectively connected to the first mounting plate and the second mounting plate in the vertical direction. The telescopic end of the first cylinder is rotatably connected to the end of the first rotating section away from the third rotating section, and the telescopic end of the second cylinder is rotatably connected to the end of the third rotating section away from the first rotating section. Two sets of bearings are provided. Bearings are respectively installed in two sets of movable blocks, and the outer rings of the two sets of bearings are fixedly connected to the two sets of movable blocks respectively. There are two sets of sleeves, which are respectively installed in the two sets of bearings, and the outer walls of the two sets of sleeves are fixedly connected to the inner rings of the two sets of bearings respectively. The sprocket is installed on the end of the sleeve near the first cylinder. The movable structure is installed on the sleeve, the first rotating section and the second rotating section, so that the two sets of pressure plates on the same rotating rod can move closer or further away from each other under the action of the first cylinder and the second cylinder, and the rotating rod can rotate after the position of the pressure plate head changes. The second adjustment component is installed with the first adjustment component. The second adjustment component is used to synchronously adjust the pressure rod when the corresponding rotating rod changes.

[0018] By adopting the above technical solution, when it is necessary to simultaneously press the edges of a heat exchanger plate with a large width on both sides, the first and second cylinders are activated. Under the action of the moving structure in this application, the extension and retraction of the telescopic ends of the first and second cylinders can drive the first and third rotating sections to move away from each other, thereby driving the pressure plate heads on the first and third rotating sections, as well as the lower pressure plate rollers, to move away from each other. The sprocket is located at the end of the sleeve near the first cylinder. When the drive motor rotates, it can drive the sleeve to rotate. At this time, under the action of the moving structure, the rotation of the sleeve can drive the rotating rod to rotate synchronously. The adjustment component is set with the first adjustment component, which can realize the movement of the upper pressure plate rollers on the pressure rod away from each other and the rotation of the pressure rod, thereby realizing the simultaneous pressing and bending of both sides of heat exchanger plates of different widths. When it is necessary to adjust the pressing and bending angle of both sides of the heat exchanger plates, the positions of the pressure plate head and lower pressure plate roller on the same rotating rod and the lower pressure plate roller on the same pressure rod are adjusted by the first cylinder and the second cylinder, thereby changing the number of pressure plate heads in contact with both sides of the heat exchanger plates. The second adjustment component is set with the first adjustment component, which can synchronously adjust the pressure rod for the rotating rod.

[0019] Optionally, the movable structure includes a first rectangular through groove and a second rectangular through groove. The first rectangular through groove is opened inside the sleeve, and the second rectangular through groove is opened inside the second rotating section. The ends of the first rotating section and the third rotating section that are far apart from each other are provided with a first rectangular block, and the first rectangular block is slidably disposed in the first rectangular through groove. The ends of the first rotating section and the third rotating section that are close to each other are provided with a second rectangular block, and the second rectangular block is slidably disposed in the second rectangular through groove.

[0020] By adopting the above technical solution, when the distance between the first rotating segment and the second rotating segment changes, the first rectangular block slides in the first rectangular through groove, and the second rectangular block moves in the second rectangular through groove. When the sleeve rotates, under the action of the first rectangular block and the first rectangular through groove, the sleeve can drive the first rotating segment to rotate synchronously. Under the action of the second rectangular block and the second rectangular through groove, the first rotating segment can drive the second rotating segment to rotate synchronously. The rotation of the second rotating segment drives the third rotating segment to rotate synchronously. This enables the pressure plate heads to move closer or further apart, and the rotating rod to rotate after the position of the pressure plate head changes.

[0021] Optionally, the mounting frame is provided with a lifting frame, and the pressure rod and the second adjustment component are both provided on the lifting frame. Multiple sets of fixing plates are provided on the first mounting plate and the second mounting plate. A lifting cylinder is fixedly provided on the fixing plate, and the telescopic end of the lifting cylinder is fixedly connected to the lifting frame. Multiple sets of lifting rods are provided on the lifting frame, and the ends of the lifting rods away from the lifting frame are respectively fixedly connected to the movable blocks in the second adjustment component.

[0022] By adopting the above technical solution, the extension end of the lifting cylinder is extended, which drives the lifting frame to rise. Since one end of the lifting rod is fixedly connected to the lifting frame and the other end is fixedly connected to the movable block, the lifting frame can drive the movable block to rise synchronously, thereby finely adjusting the distance between the rotating rod and the pressure rod, so as to meet the requirements of pressing and bending plates of different thicknesses.

[0023] Optionally, multiple sets of first annular grooves are formed on the side wall of the middle lower pressure roller, and multiple sets of second annular grooves are formed on the side wall of the middle upper pressure roller corresponding to the first annular grooves, with the width of the first annular grooves being the same as that of the second annular grooves.

[0024] By adopting the above technical solution, when it is not necessary to bend and press the heat exchanger plates, in order to reduce the idle time of the device and improve the utilization and practicality of the device, the welding rods used for welding the heat exchanger plates can be placed between the first annular groove and the second annular groove for straightening. Multiple sets of first annular grooves and multiple sets of second annular grooves can realize the simultaneous straightening of multiple sets of welding rods.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The drive mechanism in this application can drive the rotating rod and the pressure rod to rotate synchronously. After the heat exchanger plate enters between the rotating rod and the pressure rod, the rotation of the lower pressure plate roller and the upper pressure plate roller clamps and moves the heat exchanger plate. When both sides of the heat exchanger plate move to the pressure plate head, since the pressure plate head is frustum-shaped and limited by the lower pressure plate roller and the upper pressure plate roller, after the side of the heat exchanger plate contacts the inclined side wall of the pressure plate head, the side of the heat exchanger plate begins to bend until it is consistent with the inclination angle of the side wall of the pressure plate head. This application also symmetrically provides pressure plate heads at the ends of the first rotating section and the third rotating section that are far apart from each other, so as to realize the bending and pressing of the two side walls of the heat exchanger plate at the same time. The simultaneous bending of the two side walls can also avoid residual stress or small displacement caused by step-by-step pressing, reduce the symmetry and sealing uniformity of the heat exchanger plate, and thus improve the forming effect of the heat exchanger plate.

[0027] 2. The angle between the sides of the multiple sets of pressure plates in this application and the horizontal plane gradually increases. Therefore, when the multiple sets of adjustment mechanisms in this application adjust the positions of the multiple sets of pressure plates respectively, increasing or decreasing the number of pressure plates that can contact both sides of the heat exchanger plate, and then bending and pressing the sides of the heat exchanger plate, the bending angle of the pressure plate of the heat exchanger plate can be adjusted, thereby adapting to more design requirements and flexibly adjusting the pressing angle of the heat exchanger plate.

[0028] 3. When it is necessary to simultaneously press the edges of both sides of a heat exchanger plate with a large width, the first cylinder and the second cylinder are activated. Under the action of the moving structure in this application, the extension and retraction of the extension and retraction of the first cylinder and the second cylinder can drive the first rotating section and the third rotating section to move away from each other, thereby driving the pressure plate heads on the first rotating section and the third rotating section, as well as the lower pressure plate rollers, to move away from each other. The sprocket is set at the end of the sleeve near the first cylinder. When the drive motor rotates, it can drive the sleeve to rotate. At this time, under the action of the moving structure, the rotation of the sleeve can drive the rotating rod to rotate synchronously. The second adjustment component is set with the first adjustment component, which can realize the movement of the upper pressure plate rollers on the pressure rod away from each other and the rotation of the pressure rod, thereby realizing the simultaneous pressing and bending of both sides of heat exchanger plates with different widths.

[0029] 4. The extension end of the lifting cylinder extends, causing the lifting frame to rise. Since one end of the lifting rod is fixedly connected to the lifting frame and the other end is fixedly connected to the movable block, the lifting frame can drive the movable block to rise synchronously, thereby finely adjusting the distance between the rotating rod and the pressure rod, thus satisfying the need for edge bending of plates of different thicknesses.

[0030] 5. When it is not necessary to bend and press the heat exchanger plates, in order to reduce the idle time of the device and improve the utilization and practicality of the device, the welding rods used to weld the heat exchanger plates can be placed between the first annular groove and the second annular groove for straightening. Multiple sets of first annular grooves and multiple sets of second annular grooves can achieve simultaneous straightening of multiple sets of welding rods.

[0031] 6. Since each detection component contains two sets of laser emitters arranged vertically, after bending the heat exchanger plate at a certain angle, if one set of the light emitted by the two sets of laser emitters is received by the light intensity sensor while the other set is not, it indicates that the bending angle of the heat exchanger plate is within the allowable error range. If the light emitted by both sets of laser emitters is received by the light intensity sensor, it indicates that material rebound may have occurred on both sides of the heat exchanger plate, requiring another bending. In this case, the entire equipment will run in reverse to perform a second bending correction on both sides of the heat exchanger plate that has not been bent to the correct position. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 yes Figure 1 Internal structure diagram;

[0035] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part B;

[0036] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0037] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0038] Reference numerals: 1. Mounting bracket; 11. First mounting plate; 12. Second mounting plate; 13. Third mounting plate; 14. Fourth mounting plate; 15. Rotating rod; 151. First rotating section; 152. Second rotating section; 153. Third rotating section; 154. Pressure plate head; 155. Lower pressure plate roller; 156. Upper pressure plate roller; 16. Pressure rod; 17. Detection assembly; 171. Connecting rod; 172. Mounting strip; 173. Laser emitter; 174. Light intensity sensor; 2. First drive assembly; 21. Drive motor; 22. Sprocket; 23. Chain; 3. First adjusting component; 31. First cylinder; 32. Second cylinder; 33. Movable block; 34. Bearing; 35. Sleeve; 36. Moving structure; 361. First rectangular through groove; 362. Second rectangular through groove; 4. Feed guide roller assembly; 41. Feed wheel assembly; 5. Discharge guide roller assembly; 51. Discharge wheel assembly; 6. Middle lower pressure roller; 7. Middle upper pressure roller; 8. Lifting frame; 81. Fixed plate; 82. Lifting cylinder; 83. Lifting rod; 9. First annular groove; 10. Second annular groove. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0040] This application discloses an embodiment of a device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates, referring to... Figure 1 , Figure 2 and Figure 3 A device for edge pressing and edge pressing effect testing of crossflow heat exchanger fins includes a mounting frame 1. A first mounting plate 11 and a second mounting plate 12 are vertically welded onto the mounting frame 1. Multiple sets of rotating rods 15 and multiple sets of pressure rods 16 are rotatably mounted at intervals along the length of the mounting frame 1 between the first mounting plate 11 and the second mounting plate 12. The rotating rods 15 and pressure rods 16 are arranged in a corresponding manner, with each set of rotating rods 15 corresponding to one set of pressure rods 16. The pressure rods 16 are mounted above the rotating rods 15. Each rotating rod 15 includes a first rotating section 151, a second rotating section 152, and a third rotating section 153. The second rotating section 152 is located between the first rotating section 151 and the third rotating section 153. Between the first rotating section 151 and the third rotating section 153, pressure plate heads 154 are symmetrically welded and installed at their far ends. Multiple pressure plate heads 154 are all frustum-shaped and their upper bottoms are all located close to the second rotating section 152. Along the length of the mounting frame 1, the angle between the sides of the multiple pressure plate heads 154 and the horizontal plane gradually increases. Lower pressure plate rollers 155 are welded and installed on the inner side of the pressure plate heads 154 of the first rotating section 151 and the third rotating section 153. Multiple upper pressure plate rollers 156 are welded and installed on the multiple pressure rods 16 corresponding to the multiple lower pressure plate rollers 155. A drive mechanism is provided on the first mounting plate 11, and an adjustment mechanism is provided on both the first mounting plate 11 and the second mounting plate 12.

[0041] Multiple sets of detection components 17 are arranged between the first mounting plate 11 and the second mounting plate 12 and the pressure plate head 154. The detection components 17 include a connecting rod 171, a mounting strip 172, a laser emitter 173, and a light intensity sensor 174. The connecting rod 171 is horizontally bolted between the first mounting plate 11 and the second mounting plate 12. Two sets of mounting strips 172 are welded and installed, and the two sets of mounting strips 172 are vertically welded and installed at both ends of the connecting rod 171. Two sets of laser emitters 173 are installed, and the two sets of laser emitters 173 are vertically fixed on one of the two sets of mounting strips 172. The light intensity sensor 174 is installed on the other set of mounting strips 172 corresponding to the two sets of laser emitters 173.

[0042] In this embodiment, the driving mechanism can drive the rotating rod 15 and the pressure rod 16 to rotate synchronously. After the heat exchanger plates enter between the rotating rod 15 and the pressure rod 16, the rotation of the lower pressure plate roller 155 and the upper pressure plate roller 156 clamps and moves the heat exchanger plates. First, the adjustment mechanism makes the pressure plate heads 154 at corresponding angles move away from each other. When the two sides of the heat exchanger plates move to the pressure plate heads 154, the adjustment mechanism makes the pressure plate heads 154 at corresponding angles move closer to each other. Since the pressure plate heads 154 are all frustum-shaped, and under the limitation of the lower pressure plate roller 155 and the upper pressure plate roller 156, after the side of the heat exchanger plate contacts the inclined side wall of the pressure plate head 154, the side of the heat exchanger plate begins to bend until it is consistent with the inclination angle of the side wall of the pressure plate head 154. This allows for simultaneous bending and pressing of both sidewalls of the heat exchanger fins. Simultaneous bending of both sidewalls with pressure plates also avoids residual stress or minor displacement caused by step-by-step pressing, reducing the symmetry and sealing uniformity of the heat exchanger fins, thereby improving the forming effect of the heat exchanger fins. In this embodiment, the angle between the sides of the multiple sets of pressure plate heads 154 and the horizontal plane gradually increases. Therefore, when the multiple adjustment mechanisms in this embodiment adjust the positions of the multiple sets of pressure plate heads 154 respectively, increasing or decreasing the number of pressure plate heads 154 that can contact both sides of the heat exchanger fins, and then bending and pressing the sides of the heat exchanger fins, the bending angle of the pressure plates can be adjusted, thus adapting to more design requirements and allowing for flexible adjustment of the pressing angle of the heat exchanger fins.

[0043] In this embodiment, six sets of pressure plate heads 154 are provided. The angles between the sides of the six sets of pressure plate heads 154 and the horizontal plane are 15°, 30°, 45°, 60°, 75°, and 90°, respectively. That is, this embodiment can press the heat exchanger plates at six different bending angles. In this embodiment, six sets of pressure plate heads 154 are a preferred embodiment. In other embodiments, the number of sets of pressure plate heads 154 and the angles between the sides of each set of pressure plate heads 154 and the horizontal plane can be adjusted according to actual usage requirements. In addition, by setting multiple sets of pressure plate heads with different angles, the stability of bending the sides of the heat exchanger plates can be further improved, and the effective bending effect of the heat exchanger sides can be improved.

[0044] In this embodiment, since each detection component 17 contains two sets of laser emitters 173 arranged vertically, after the heat exchanger plate is bent at a certain angle, such as a 30° angle, if one set of the light emitted by the two sets of laser emitters 173 is received by the light intensity sensor 174 and the other set is not received by the light intensity sensor 174, it indicates that the 30° angle bend on both sides of the heat exchanger plate is within the allowable error range. If the light emitted by both sets of laser emitters 173 is received by the light intensity sensor 174, it indicates that material rebound may have occurred on both sides of the heat exchanger plate, and it needs to be bent again. Then the entire device runs in reverse to perform a second bending correction on both sides of the heat exchanger plate that has not been bent to the correct position.

[0045] Reference Figure 2 and Figure 4 To achieve rotational drive of the rotating rod 15 and the pressure rod 16, the drive mechanism in this embodiment includes a first drive assembly 2 and a second drive assembly. The first drive assembly 2 includes a drive motor 21, a sprocket 22, and a chain 23. A third mounting plate 13 is welded and mounted on the mounting frame 1, and the third mounting plate 13 is located on the side of the first mounting plate 11 away from the second mounting plate 12. The drive motor 21 is fixedly mounted on the side of the third mounting plate 13 away from the first mounting plate 11 with fixing bolts. Multiple sets of sprockets 22 are provided, and each set of sprockets 22 is fixedly sleeved on the ends of multiple sets of first rotating segments 151 away from the third rotating segment 153, and rotatably mounted between the first mounting plate 11 and the third mounting plate 13. The output shaft of the drive motor 21 passes through the third mounting plate 13 and is welded and fixedly connected to one set of sprockets 22. The chain 23 is sleeved on the multiple sets of sprockets 22. The second drive assembly is provided with the same as the first drive assembly 2, and the second drive assembly is provided on the multiple sets of pressure rods 16.

[0046] Start the drive motor 21, which drives one of the multiple sets of sprockets 22 to rotate. Since the multiple sets of sprockets 22 are all engaged with the chain 23, they can drive the multiple sets of sprockets 22 to rotate synchronously. The sprockets 22 synchronously drive the first rotating section 151 to rotate, thereby realizing the rotation of the rotating rod 15. The first drive assembly 2 is set with the second drive assembly, which can realize the synchronous rotation of multiple sets of pressure rods 16.

[0047] Reference Figure 1 and Figure 2 In the actual pressing process, due to the thinness of the heat exchanger fins, they are easily subject to slight bending due to gravity. Therefore, in this embodiment, a feeding guide roller group 4 is installed at the feeding end of the mounting frame 1, and a discharging guide roller group 5 is installed at the discharging end of the mounting frame 1. The feeding guide roller group 4 includes an upper guide roller and a lower guide roller. The upper guide roller is arranged with the lower guide roller and is installed above the lower guide roller. Both the upper and lower guide rollers are rotatably mounted between the first mounting plate 11 and the second mounting plate 12. The feeding wheel group 41 and the discharging wheel group 5 are rotatably mounted on the first mounting plate 11. 1. The feeding wheel assembly 41 includes an upper feeding wheel and a lower feeding wheel. Both the upper feeding wheel and the lower feeding wheel are rotatably mounted on the side of the first mounting plate 11 away from the second mounting plate 12. The upper feeding wheel meshes with the chain 23 in the first drive assembly 2, and the lower feeding wheel meshes with the chain 23 in the second drive assembly. One end of the upper guide roller passes through the first mounting plate 11 and is welded and fixedly connected to the upper feeding wheel. One end of the lower guide roller passes through the first mounting plate 11 and is welded and fixedly connected to the lower feeding wheel. The feeding guide roller assembly 4 is set together with the discharging guide roller assembly 5, and the feeding wheel assembly 41 is set together with the discharging wheel assembly 51.

[0048] Since the upper feed roller meshes with the chain 23 in the first drive assembly 2, and the lower feed roller meshes with the chain 23 in the second drive assembly, the drive motor 21 can drive the upper guide roller and the lower guide roller to rotate synchronously, thereby extruding and conveying the heat exchanger plates before bending and pressing. This improves the stability of the heat exchanger plates during movement, avoids the impact on the heat exchanger plates that are about to be bent and pressed, and also avoids the situation where the heat exchanger plates are slightly displaced due to insufficient power when the two sides of the heat exchanger plates abut against the side wall of the pressure plate head 154. This further improves the bending and pressing effect of the heat exchanger plates. The feed guide roller group 4 is set with the discharge guide roller group 5, the feed roller group 41 is set with the discharge roller group 51, and the guide roller group is set at the discharge end of the mounting frame 1, which can further improve the stability of the heat exchanger plates and avoid the impact on the heat exchanger plates that are about to be fully bent and pressed due to their own weight.

[0049] Reference Figure 2 and Figure 4Because the heat exchanger plates are relatively wide and thick, they are prone to wrinkling. Therefore, in this embodiment, a lower pressure roller 6 is welded and installed on the second rotating section 152, and a higher pressure roller 7 is welded and installed on the pressure rod 16 corresponding to the lower pressure roller 6. The lower pressure roller 6 and the higher pressure roller 7 are arranged in the same manner. While pressing and conveying the middle part of the heat exchanger plates, the lower pressure roller 6 and the higher pressure roller 7 can also maintain the stability of the middle part of the heat exchanger plates, avoiding changes in the internal stress of the heat exchanger plates due to bending on both sides, and preventing wrinkles from appearing in the middle.

[0050] Reference Figure 2 , Figure 4 and Figure 5 To meet a wider range of operating conditions, the adjustment mechanism in this embodiment includes a first adjustment component 3 and a second adjustment component. The first adjustment component 3 includes a first cylinder 31, a second cylinder 32, a movable block 33, a bearing 34, a sleeve 35, and a moving structure 36. A fourth mounting plate 14 is welded and mounted on the mounting bracket 1, and the fourth mounting plate 14 is located on the side of the second mounting plate 12 away from the first mounting plate 11. The first cylinder 31 is bolted and fixedly mounted on the third mounting plate 13, and the second cylinder 32 is bolted and fixedly mounted on the fourth mounting plate 14. Two sets of movable blocks 33 are installed, and the two sets of movable blocks 33 are respectively connected to the first mounting plate 11 and the second mounting plate 12 in the vertical direction. The telescopic end of the first cylinder 31 is far from the first rotating section 151. The end of the third rotating section 153 is rotatably connected to the end of the third rotating section 153 away from the first rotating section 151. Two sets of bearings 34 are installed, and the two sets of bearings 34 are respectively installed in the two sets of movable blocks 33. The outer rings of the two sets of bearings 34 are respectively welded and fixedly connected to the two sets of movable blocks 33. Two sets of sleeves 35 are installed, and the two sets of sleeves 35 are respectively installed in the two sets of bearings 34. The outer walls of the two sets of sleeves 35 are respectively welded and fixedly connected to the inner rings of the two sets of bearings 34. The sprocket 22 is welded and installed on the end of the sleeve 35 near the first cylinder 31. The moving structure 36 is set on the sleeve 35, the first rotating section 151 and the second rotating section 152. The second adjusting component is set with the first adjusting component 3.

[0051] When it is necessary to simultaneously press the edges of a heat exchanger plate with a large width on both sides, the first cylinder 31 and the second cylinder 32 are activated. Under the action of the moving structure 36 in this embodiment, the extension and retraction of the telescopic ends of the first cylinder 31 and the second cylinder 32 can drive the first rotating section 151 and the third rotating section 153 away from each other, thereby driving the pressure plate heads 154 on the first rotating section 151 and the third rotating section 153, as well as the lower pressure plate roller 155, to move away from each other. The sprocket 22 is located at the end of the sleeve 35 near the first cylinder 31. When the drive motor 21 rotates, it can drive the sleeve 35 to rotate. At this time, under the action of the moving structure 36, the rotation of the sleeve 35 can drive the rotating rod 15 to rotate synchronously. The second adjustment assembly is set with the first adjustment assembly 3, which can realize the movement of the upper pressure plate roller 156 on the pressure rod 16 away from each other and the rotation of the pressure rod 16, thereby realizing the simultaneous pressing and bending of both sides of heat exchanger plates of different widths. When it is necessary to adjust the pressing and bending angle of both sides of the heat exchanger plates, the positions of the pressure plate head 154 and the lower pressure plate roller 155 on the same rotating rod 15 and the lower pressure plate roller 155 on the same pressure rod 16 are adjusted by the first cylinder 31 and the second cylinder 32, thereby changing the number of pressure plate heads 154 in contact with both sides of the heat exchanger plates. The second adjustment assembly is set with the first adjustment assembly 3, which can synchronously adjust the pressure rod 16 for the rotating rod 15.

[0052] Reference Figure 4 and Figure 5 In this embodiment, the movable structure 36 includes a first rectangular through groove 361 and a second rectangular through groove 362. The first rectangular through groove 361 is opened inside the sleeve 35, and the second rectangular through groove 362 is opened inside the second rotating segment 152. The ends of the first rotating segment 151 and the third rotating segment 153 that are far apart from each other are integrally provided with a first rectangular block, and the first rectangular block is slidably installed in the first rectangular through groove 361. The ends of the first rotating segment 151 and the third rotating segment 153 that are close to each other are integrally provided with a second rectangular block, and the second rectangular block is slidably installed in the second rectangular through groove 362.

[0053] When the distance between the first rotating segment 151 and the second rotating segment 152 changes, the first rectangular block slides in the first rectangular through groove 361, and the second rectangular block moves in the second rectangular through groove 362. When the sleeve 35 rotates, under the action of the first rectangular block and the first rectangular through groove 361, the sleeve 35 can drive the first rotating segment 151 to rotate synchronously. Under the action of the second rectangular block and the second rectangular through groove 362, the first rotating segment 151 can drive the second rotating segment 152 to rotate synchronously. The rotation of the second rotating segment 152 drives the third rotating segment 153 to rotate synchronously. This enables the pressure plate heads 154 to move closer or further apart, and the rotating rod 15 to rotate after the position of the pressure plate head 154 changes.

[0054] Reference Figure 1 and Figure 2 In order to press and bend heat exchanger sheets of different thicknesses, in this embodiment, a lifting frame 8 is installed on the mounting frame 1. The pressure rod 16 and the second adjustment component are both installed on the lifting frame 8. Multiple sets of fixing plates 81 are bolted to the first mounting plate 11 and the second mounting plate 12. Two sets of lifting cylinders 82 are bolted to the fixing plates 81, and the telescopic ends of the lifting cylinders 82 are bolted to the lifting frame 8. Multiple sets of lifting rods 83 are welded to the lifting frame 8. The ends of the lifting rods 83 away from the lifting frame 8 are bolted to the movable blocks 33 in the second adjustment component.

[0055] The extension end of the lifting cylinder 82 extends, causing the lifting frame 8 to rise. Since one end of the lifting rod 83 is fixedly connected to the lifting frame 8 and the other end is fixedly connected to the movable block 33, the lifting frame 8 can drive the movable block 33 to rise synchronously. This allows for fine adjustment of the distance between the rotating rod 15 and the pressure rod 16, thereby satisfying the need for pressing and bending plates of different thicknesses. In this embodiment, the lifting cylinder 82 is a high-precision cylinder to accommodate minute changes in the thickness of the heat exchanger sheets.

[0056] Reference Figure 2 During the welding process of heat exchanger plates, metal strips are needed for edge sealing. Bending metal strips may affect the sealing effect of the weld. Therefore, in this embodiment, multiple sets of first annular grooves 9 are opened on the side wall of the middle lower pressure roller 6, and multiple sets of second annular grooves 10 are opened on the side wall of the middle upper pressure roller 7 corresponding to the first annular grooves 9. The width of the first annular grooves 9 is the same as that of the second annular grooves 10. When it is not necessary to bend and press the heat exchanger plates, or when it is necessary to straighten the metal strips, in order to reduce the idle time of the device and improve the utilization and practicality of the device, the welding rods used to weld the heat exchanger plates can be placed between the first annular grooves 9 and the second annular grooves 10 for straightening. Multiple sets of first annular grooves 9 and multiple sets of second annular grooves 10 can achieve simultaneous straightening of multiple sets of welding rods.

[0057] The implementation principle of a device for edge pressing and edge pressing effect detection of cross-flow heat exchanger plates in this application is as follows:

[0058] When it is necessary to simultaneously bend and press the edges of both sides of the heat exchanger plate, after the heat exchanger plate enters between the rotating rod 15 and the pressure rod 16, the rotation of the lower pressure plate roller 155 and the upper pressure plate roller 156 clamps and moves the heat exchanger plate. When both sides of the heat exchanger plate move to the pressure plate head 154, since the pressure plate head 154 is frustum-shaped and under the limitation of the lower pressure plate roller 155 and the upper pressure plate roller 156, after the side of the heat exchanger plate contacts the inclined side wall of the pressure plate head 154 on the first rotating section 151 and the third rotating section 153, the side of the heat exchanger plate begins to bend until it is consistent with the inclination angle of the side wall of the pressure plate head 154, thereby realizing the simultaneous bending and pressing of the two side walls of the heat exchanger plate.

[0059] When it is necessary to bend and press the edges of heat exchanger plates of different widths, the first cylinder 31 and the second cylinder 32 are activated. The extension and retraction of the extension and retraction ends of the first cylinder 31 and the second cylinder 32 can drive the first rotating section 151 and the third rotating section 153 to move away from each other, thereby driving the pressure plate head 154 on the first rotating section 151 and the third rotating section 153 and the lower pressure plate roller 155 to move away from each other, and synchronously adjusting the pressure rod 16. When the drive motor 21 rotates, it can drive the sleeve 35 to rotate through the chain 23 and the sprocket 22. The rotation of the sleeve 35 can drive the rotating rod 15 and the pressure rod 16 to rotate, thereby realizing the simultaneous pressing and bending of both sides of heat exchanger plates of different widths.

[0060] When it is necessary to adjust the pressing angle of the heat exchanger plate, the positions of the pressing head 154 and the lower pressing roller 155 on the same rotating rod 15 and the lower pressing roller 155 on the same pressing rod 16 are adjusted by the first cylinder 31 and the second cylinder 32, thereby changing the number of pressing heads 154 that contact both sides of the heat exchanger plate.

[0061] When it is necessary to detect the side bending effect of the heat exchanger plate, if one set of light emitted by the two sets of laser emitters 173 is received by the light intensity sensor 174 and the other set is not received by the light intensity sensor 174, it means that the bending effect is within the allowable error range. If the light emitted by both sets of laser emitters 173 is received by the light intensity sensor 174, it means that there may be material rebound on both sides of the heat exchanger plate, and it needs to be bent again. Then the entire equipment runs in reverse to perform secondary bending correction on both sides of the heat exchanger plate that has not been bent in place.

[0062] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0063] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for pressing and testing the pressing effect of fins in a crossflow heat exchanger, comprising a mounting frame (1), characterized in that: A first mounting plate (11) and a second mounting plate (12) are vertically arranged on the mounting frame (1). Multiple sets of rotating rods (15) and multiple sets of pressure rods (16) are spaced apart and rotatably arranged between the first mounting plate (11) and the second mounting plate (12) along the length of the mounting frame (1). The rotating rods (15) are arranged in relation to the pressure rods (16), with each set of rotating rods (15) corresponding to one set of pressure rods (16). The pressure rods (16) are positioned above the rotating rods (15). Each rotating rod (15) includes a first rotating section (151), a second rotating section (152), and a third rotating section (153). The second rotating section (152) is located between the first rotating section (151) and the third rotating section (153). Pressure plate heads (154) are symmetrically arranged at the ends of the first rotating section (151) and the third rotating section (153) that are far apart from each other. Multiple sets of pressure rods (154) are arranged in relation to each other. The plate heads (154) are all frustum-shaped and their upper bottoms are all located close to the second rotating section (152). Along the length of the mounting frame (1), the angle between the side of the multiple pressure plate heads (154) and the horizontal plane gradually increases. The first rotating section (151) and the third rotating section (153) are both provided with lower pressure plate rollers (155) near the inner side of the pressure plate heads (154). Multiple pressure rods (16) are provided with multiple upper pressure plate rollers (156) corresponding to multiple lower pressure plate rollers (155). The first mounting plate (11) is provided with a drive mechanism for synchronously rotating multiple rotating rods (15) and multiple pressure rods (16). The first mounting plate (11) and the second mounting plate (12) are both provided with multiple adjustment mechanisms for adjusting the position of the two pressure plate heads (154) on the same rotating rod (15) to move closer or further away from each other and to adjust the pressure angle of different edges. Between the first mounting plate (11) and the second mounting plate (12), there are multiple sets of detection components (17) for detecting the bending effect of the heat exchanger plates. The detection components (17) include a connecting rod (171), a mounting strip (172), a laser emitter (173), and a light intensity sensor (174). The connecting rod (171) is horizontally positioned between the first mounting plate (11) and the second mounting plate (12). There are two sets of mounting strips (172), which are vertically positioned at both ends of the connecting rod (171). There are two sets of laser emitters (173), which are vertically positioned on one of the two sets of mounting strips (172). The light intensity sensor (174) is positioned on the other set of mounting strips (172) corresponding to the two sets of laser emitters (173).

2. The device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates according to claim 1, characterized in that: The drive mechanism includes a first drive assembly (2) and a second drive assembly. The first drive assembly (2) includes a drive motor (21), a sprocket (22), and a chain (23). A third mounting plate (13) is provided on the mounting bracket (1), and the third mounting plate (13) is located on the side of the first mounting plate (11) away from the second mounting plate (12). The drive motor (21) is fixedly mounted on the side of the third mounting plate (13) away from the first mounting plate (11). There are multiple sets of sprockets (22), and each set of sprockets (22) is fixedly mounted. Located at the end of multiple sets of first rotating sections (151) away from the third rotating section (153), and rotatably positioned between the first mounting plate (11) and the third mounting plate (13), the output shaft of the drive motor (21) passes through the third mounting plate (13) and is fixedly connected to one of the multiple sets of sprockets (22), the chain (23) is sleeved on the multiple sets of sprockets (22), the second drive assembly is set with the first drive assembly (2), and the second drive assembly is set on multiple sets of pressure rods (16) to drive the multiple sets of pressure rods (16) to rotate synchronously.

3. The device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates according to claim 2, characterized in that: The feeding end of the mounting frame (1) is provided with a feeding guide roller group (4), and the discharging end of the mounting frame (1) is provided with a discharging guide roller group (5). The feeding guide roller group (4) includes an upper guide roller and a lower guide roller. The upper guide roller is set with the lower guide roller and is located above the lower guide roller. The upper guide roller and the lower guide roller are rotatably set between the first mounting plate (11) and the second mounting plate (12). The first mounting plate (11) is rotatably set with a feeding wheel group (41) and a discharging wheel group (51). The feeding wheel group (41) includes an upper feeding wheel and a lower feeding wheel. Both the feed roller and the lower feed roller are rotatably mounted on the side of the first mounting plate (11) away from the second mounting plate (12). The upper feed roller meshes with the chain (23) in the first drive assembly (2), and the lower feed roller meshes with the chain (23) in the second drive assembly. One end of the upper guide roller passes through the first mounting plate (11) and is fixedly connected to the upper feed roller. One end of the lower guide roller passes through the first mounting plate (11) and is fixedly connected to the lower feed roller. The feed guide roller group (4) is set with the discharge guide roller group (5), and the feed roller group (41) is set with the discharge roller group (51).

4. The device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates according to claim 3, characterized in that: The second rotating section (152) is provided with a middle lower pressure roller (6), and the pressure rod (16) is provided with a middle upper pressure roller (7) corresponding to the middle lower pressure roller (6). The middle lower pressure roller (6) is provided with the same middle upper pressure roller (7).

5. The device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates according to claim 3, characterized in that: The adjustment mechanism includes a first adjustment component (3) and a second adjustment component. The first adjustment component (3) includes a first cylinder (31), a second cylinder (32), a movable block (33), a bearing (34), a sleeve (35), and a moving structure (36). A fourth mounting plate (14) is provided on the mounting bracket (1), and the fourth mounting plate (14) is located on the side of the second mounting plate (12) away from the first mounting plate (11). The first cylinder (31) is provided on the third mounting plate (13), and the second cylinder (32) is located on the side of the second mounting plate (12) away from the first mounting plate (11). 2) The movable blocks (33) are set on the fourth mounting plate (14) in two sets. The two sets of movable blocks (33) are respectively connected to the first mounting plate (11) and the second mounting plate (12) in the vertical direction. The telescopic end of the first cylinder (31) is rotatably connected to the end of the first rotating section (151) away from the third rotating section (153). The telescopic end of the second cylinder (32) is rotatably connected to the end of the third rotating section (153) away from the first rotating section (151). The bearings (34) are set in two sets. Two sets of bearings (34) are respectively installed in two sets of movable blocks (33), and the outer rings of the two sets of bearings (34) are fixedly connected to the two sets of movable blocks (33). Two sets of sleeves (35) are provided, and the two sets of sleeves (35) are respectively installed in the two sets of bearings (34), and the outer walls of the two sets of sleeves (35) are fixedly connected to the inner rings of the two sets of bearings (34). The sprocket (22) is installed on the end of the sleeve (35) near the first cylinder (31). The moving structure (36) is installed on the sleeve (35). On the first rotating section (151) and the second rotating section (152), under the action of the first cylinder (31) and the second cylinder (32), the two sets of pressure plate heads (154) on the same rotating rod (15) can move closer or further away from each other, and the rotating rod (15) can rotate after the position of the pressure plate head (154) changes. The second adjusting component is set with the first adjusting component (3). The second adjusting component is used to synchronously adjust the pressure rod (16) when the rotating rod (15) changes.

6. The device for pressing and testing the pressing effect of plates in a cross-flow heat exchanger according to claim 5, characterized in that: The movable structure (36) includes a first rectangular through groove (361) and a second rectangular through groove (362). The first rectangular through groove (361) is opened in the sleeve (35), and the second rectangular through groove (362) is opened in the second rotating section (152). The ends of the first rotating section (151) and the third rotating section (153) that are far apart from each other are provided with a first rectangular block, and the first rectangular block is slidably disposed in the first rectangular through groove (361). The ends of the first rotating section (151) and the third rotating section (153) that are close to each other are provided with a second rectangular block, and the second rectangular block is slidably disposed in the second rectangular through groove (362).

7. The device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates according to claim 5, characterized in that: The mounting frame (1) is provided with a lifting frame (8), and the pressure rod (16) and the second adjustment component are both provided on the lifting frame (8). The first mounting plate (11) and the second mounting plate (12) are provided with multiple sets of fixing plates (81). The fixing plate (81) is fixedly provided with a lifting cylinder (82), and the telescopic end of the lifting cylinder (82) is fixedly connected to the lifting frame (8). The lifting frame (8) is provided with multiple sets of lifting rods (83), and the ends of the lifting rods (83) away from the lifting frame (8) are respectively fixedly connected to the movable block (33) in the second adjustment component.

8. The device for edge pressing and edge pressing effect detection of crossflow heat exchanger plates according to claim 4, characterized in that: Multiple sets of first annular grooves (9) are opened on the side wall of the middle lower pressure roller (6), and multiple sets of second annular grooves (10) are opened on the side wall of the middle upper pressure roller (7) corresponding to the first annular grooves (9). The width of the first annular grooves (9) is the same as that of the second annular grooves (10).

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