Bending device for bending parallel flow heat exchanger

Abstract

The present invention discloses a bending device for bending a parallel flow heat exchanger, the bending device comprises a frame, a first component and a pushing component, the first component comprises at least a first member and a second member that are movable in the height direction of the frame, the pushing component comprises a first pushing component and a second pushing component that are located on both sides of the first component in the width direction of the frame, the first pushing component comprises a first connecting component and a first component, the first connecting component is movable in the width direction and the height direction of the frame at the same time, at least a portion of the first component is movable in the width direction and the height direction of the frame at the same time, when the bending device bends the parallel flow heat exchanger, at least a portion of the first component and at least a portion of the second pushing component are in contact with the surface of the heat exchanger respectively. The bending device for bending a parallel flow heat exchanger of the present invention can improve the bending efficiency and improve the quality of the heat exchanger after bending.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange technology, and in particular to a bending device for bending a parallel flow heat exchanger. Background Art

[0002] Parallel flow heat exchangers such as multi-channel heat exchangers require bends in some applications to improve the heat transfer performance of the heat exchanger.

[0003] During the bending process, multi-channel heat exchangers can experience deformations other than bending, such as twisting and displacement in the bend area. This can lead to poor appearance and positional deviations between various parts of the heat exchanger, affecting subsequent installation and operation and hindering heat transfer performance. Multi-channel heat exchangers can be bent multiple times, meaning they contain multiple bends. The greater the number of bends, the greater the positional deviations between corresponding parts of the heat exchanger. Summary of the Invention

[0004] An embodiment of the present invention provides a bending device for bending a parallel flow heat exchanger, which can improve the bending efficiency and the quality of the heat exchanger after bending.

[0005] According to an embodiment of the present invention, a bending device includes: a frame; a first component, the first component is used to bend the heat exchanger and includes a first piece and a second piece, the first piece is connected to the frame, the second piece and the first piece are arranged along the height direction of the frame, and at least one of the first piece and the second piece is positionally variable in the height direction of the frame; a pushing component, the pushing component includes a first pushing component and a second pushing component, the first pushing component and the second pushing component are arranged along the width direction of the frame, and the first pushing component and the second pushing component are respectively located on both sides of the first component in the width direction of the frame, the first pushing component includes a first connecting component and a first component, the first connecting component is connected to the frame, and the position of the first connecting component is simultaneously variable in the width direction and the height direction of the frame, the first component is connected to the first connecting component, and at least a portion of the first component is positionally variable in the width direction and the height direction of the frame, when the bending device bends the parallel flow heat exchanger, at least a portion of the first component and at least a portion of the second pushing component respectively contact the surface of the parallel flow heat exchanger.

[0006] According to the bending device for bending a parallel flow heat exchanger according to the embodiment of the present invention, the bending device can improve the bending efficiency and the quality of the heat exchanger after bending.

[0007] In some embodiments, the first component includes: a first shaft rod, which is connected to the first connecting component; a first roller, which has a peripheral wall, and the peripheral contour of the cross-section of the peripheral wall of the first roller is circular. The first roller also has a first channel, and the first channel penetrates the first roller in the length direction of the first roller. The peripheral wall of the first roller is arranged around the first channel, and at least part of the first shaft rod is arranged in the first channel. The cross-sectional area of ​​the first channel is larger than the cross-sectional area of ​​the first shaft rod. The length direction of the first roller is perpendicular to the width direction of the frame, and the peripheral wall of the first roller can rotate around the first shaft rod.

[0008] In some embodiments, a length direction of the first roller is perpendicular to a height direction of the frame, and a length direction of the first roller is parallel to a thickness direction of the frame.

[0009] In some embodiments, the first pushing assembly further includes a first positioning member, which is connected to the first connecting member. When the bending device bends the parallel flow heat exchanger, the first positioning member abuts against one end of the parallel flow heat exchanger in the length direction of the heat exchanger.

[0010] In some embodiments, the first connecting component is provided with a first guide groove extending along the length direction of the first roller, a portion of the first positioning member is provided in the first guide groove, another portion of the first positioning member is located outside the first guide groove, and the first positioning member is movable along the extension direction of the first guide groove.

[0011] In some embodiments, the first connecting component includes a first plate and a second plate, the first plate extends along the height direction of the frame, the second plate extends along the width direction of the frame, one end of the second plate in the extension direction is connected to one end of the first plate in the extension direction, and the other end of the second plate in the extension direction is connected to the first component.

[0012] In some embodiments, the first connecting component further includes a first rib and a second rib, the first rib being connected to the first plate and the second plate respectively, the second rib being connected to the first plate and the second plate respectively, and the first rib and the second rib having a gap in the thickness direction of the frame.

[0013] In some embodiments, the second pushing assembly includes a second connecting component and a second component, the second connecting component is connected to the frame, and the position of the second connecting component in the width direction and the height direction of the frame can be changed simultaneously, the second component is connected to the second connecting component, and at least a part of the second component can be changed in the height direction and the width direction of the frame. When the bending device bends the parallel flow heat exchanger, at least a part of the first component and at least a part of the second component respectively contact the surface of the parallel flow heat exchanger.

[0014] In some embodiments, the bending device for bending the parallel flow heat exchanger also includes a second component, which is connected to the frame and can be adjusted relative to the frame. There are at least two second components, and the two second components are located on both sides of the first component in the width direction of the frame, and the two second components and the first component are located between the first pushing component and the second pushing component in the width direction of the frame.

[0015] In some embodiments, the second component includes a third piece and a fourth piece, the third piece is connected to the frame, the fourth piece and the third piece are arranged along the height direction of the frame, and at least one of the third piece and the fourth piece is positionally variable in the height direction of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of a bending device for bending a parallel flow heat exchanger according to an embodiment of the present invention.

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of the pushing component of the middle bending device.

[0018] Figure 3 yes Figure 1 A partial schematic diagram of .

[0019] Figure 4 yes Figure 1 Schematic diagram of the structure of the first component of the middle bending device.

[0020] Figure 5 yes Figure 1 Schematic diagram of the structure of the second component of the middle bending device.

[0021] Reference numerals:

[0022] Frame 1, upper support body 11, lower support body 12, support plate 13, first guide rail subassembly 14, first linear guide 141, first slide 142, second linear guide 143, second slide 144, guide plate 15, second guide rail subassembly 16, third linear guide 161, third slide 162, first assembly 2, first piece 21, second piece 22, first mold frame 23, first top plate 231, first bottom plate 232, first guide rail 233, first slider 234, first lower mold driving component 24, first motor 241, first synchronous pulley assembly 242, first main pulley 2421, first slave pulley 2422, first drive shaft 243, first moving member 244, first connecting assembly 245, first guide sleeve 2451, first connecting rod 2452, first connecting plate 2453, first upper mold driving component 25, pushing assembly 3, first pushing assembly 301, second pushing assembly 302, first connecting component 31, first guide groove 310, first plate 311, second plate 312, first rib 313, second rib 314, first component 32, first shaft rod 321, first roller 322, first positioning member 323, second positioning member 324, second connecting component 33, second component 34, first cantilever 35, second assembly 4, third member 41, fourth member 42, second mold frame 43, second top plate 431, second bottom plate 432, second upper mold driving component 44, second motor 441, second synchronous pulley assembly 442, second main pulley 4421, second slave pulley 4422, second drive shaft 443, second moving member 444, second connecting assembly 445, second guide sleeve 4451, second connecting rod 4452, second connecting plate 4453. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be understood as limiting the present invention. Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0024] like Figure 1 As shown, the bending device for bending a parallel flow heat exchanger according to an embodiment of the present invention comprises a frame 1, a first component 2 and a pushing component 3. Specifically, as Figure 1As shown, the frame 1 includes an upper support body 11, a lower support body 12, and a support plate 13. The lower support body 12 is located below the upper support body 11, that is, the lower support body 12 is lower than the upper support body 11 and there is a gap between the lower support body 12 and the upper support body 11 in the vertical direction. The lower support body 12 and the upper support body 11 are opposite to each other in the vertical direction. The lower end of the upper support body 11 is connected to the upper end of the support plate 13.

[0025] The first component 2 is used for bending the heat exchanger and includes a first piece 21 and a second piece 22. The first piece 21 is connected to the frame 1. The second piece 22 and the first piece 21 are connected along the height direction of the frame 1 (such as Figure 1 The first piece 21 and the second piece 22 are arranged in the vertical direction of the frame 1, and at least one of the first piece 21 and the second piece 22 can be moved in the height direction of the frame 1. Figure 1 As shown, the first member 21 is disposed on the upper surface of the lower support body 12, and the second member 22 is located above the first member 21. The first member 21 and / or the second member 22 are movable in the vertical direction. It will be appreciated that the portion to be bent in the parallel flow heat exchanger is preferably located between the first member 21 and the second member 22, so that it can be bent under the action of the first and second members 21 and 22.

[0026] The pushing assembly 3 includes a first pushing assembly 301 and a second pushing assembly 302. The first pushing assembly 301 and the second pushing assembly 302 are arranged along the width direction of the frame 1 (eg Figure 1 The first pushing assembly 301 and the second pushing assembly 302 are respectively located on both sides of the first assembly 2 in the width direction of the frame 1. Figure 1 As shown, the first pushing component 301 is located on the left side of the first component 2 , and the second pushing component 302 is located on the right side of the first component 2 .

[0027] The first pushing assembly 301 includes a first connecting member 31 and a first member 32. The first connecting member 31 is connected to the frame 1 and can be moved simultaneously in the width and height directions of the frame 1. The first member 32 is connected to the first connecting member 31, and at least a portion of the first member 32 can be moved simultaneously in the width and height directions of the frame 1. In other words, at least a portion of the first member 32 can be moved simultaneously in the width and height directions of the frame 1 under the influence of the first connecting member 31.

[0028] When the bending device bends the parallel flow heat exchanger, at least a portion of the first component 32 and at least a portion of the second pushing assembly 302 respectively contact the surface of the parallel flow heat exchanger.

[0029] like Figure 1As shown, when the bending device bends the parallel flow heat exchanger, at least a portion of the first component 32 of the first pushing assembly 301 contacts the surface of the left end of the parallel flow heat exchanger, and at least a portion of the second pushing assembly 302 contacts the surface of the right end of the parallel flow heat exchanger. Thus, when the first assembly 2 bends the portion of the parallel flow heat exchanger to be bent, the first component 32 and the second pushing assembly 302 are adapted to respectively abut against the surfaces at both ends of the parallel flow heat exchanger.

[0030] According to the bending device for bending a parallel flow heat exchanger according to the embodiment of the present invention, the bending device can improve the bending efficiency and the quality of the heat exchanger after bending.

[0031] In some embodiments, the first component 32 includes a first shaft rod 321 and a first roller 322, wherein the first shaft rod 321 is connected to the first connecting component 31. The first roller 322 has an outer peripheral wall, and the outer peripheral contour of the cross section of the outer peripheral wall of the first roller 322 is circular. The first roller 322 also has a first channel, which penetrates the first roller 322 in the length direction of the first roller 322. The outer peripheral wall of the first roller 322 is arranged around the first channel. At least a portion of the first shaft rod 321 is disposed in the first channel. The cross-sectional area of ​​the first channel is greater than the cross-sectional area of ​​the first shaft rod 321. The length direction of the first roller 322 is perpendicular to the width direction of the frame 1, and the outer peripheral wall of the first roller 322 can rotate around the first shaft rod 321.

[0032] like Figure 2 As shown, the length direction of the first shaft rod 321 and the length direction of the first roller 322 are both orthogonal to the left-right direction. The first roller 322 is sleeved on the outer circumference of the first shaft rod 321 and is rotatable around the first shaft rod 321. When the bending device bends the parallel flow heat exchanger, the outer circumferential surface of the first roller 322 is adapted to contact the surface of the parallel flow heat exchanger.

[0033] In some embodiments, the length direction of the first roller 322 is perpendicular to the height direction of the frame 1, and the length direction of the first roller 322 is parallel to the thickness direction of the frame 1 ( Figure 1 For example, Figure 2 As shown, the first shaft rod 321 and the first roller 322 both extend in the front-to-back direction.

[0034] Specifically, the first pushing assembly 301 further includes a first cantilever 35, which extends toward the first assembly 2 and protrudes from the first connecting member 31. Figure 2 As shown, the first cantilever 35 of the first pushing assembly 301 is installed on the bottom surface of the first connecting component 31 and extends rightward from the bottom surface of the first connecting component 31 and extends out of the first connecting component 31 .

[0035] There are two first cantilevers 35, and the two first cantilevers 35 are arranged at intervals in the front-to-back direction. One of the first cantilevers 35 is arranged on the front side of the bottom surface of the first connecting part 31, and the other first cantilever 35 is arranged on the rear side of the bottom surface of the first connecting part 31. The first shaft rod 321 is connected between the two first cantilevers 35.

[0036] In some embodiments, the first pushing assembly 301 further includes a first positioning member 323, which is connected to the first connecting member 31. When the bending device bends the parallel flow heat exchanger, the first positioning member 323 abuts against one end of the parallel flow heat exchanger in the length direction of the heat exchanger. Figure 2 As shown, a first positioning member 323 is provided on the bottom surface of the first connecting member 31. When the bending device bends the parallel flow heat exchanger, the first positioning member 323 can abut against the left end of the parallel flow heat exchanger, thereby improving the bending efficiency.

[0037] In some embodiments, the first connecting member 31 is provided with a first guide groove 310 extending along the length direction of the first roller 322, a portion of the first positioning member 323 is provided in the first guide groove 310, another portion of the first positioning member 323 is located outside the first guide groove 310, and the first positioning member 323 is movable along the extension direction of the first guide groove 310. Figure 2 As shown, the first guide groove 310 extends in the front-to-back direction, and the upper end of the first positioning member 323 is engaged in the first guide groove 310, and the other parts of the first positioning member 323 are located below the first connecting member 31. The first positioning member 323 can be moved in the first guide groove 310 in the front-to-back direction so as to align the first positioning member 323 with the center position of the left end portion of the parallel flow heat exchanger to improve the abutment stability.

[0038] In some embodiments, the first connecting component 31 includes a first plate 311 and a second plate 312, wherein the first plate 311 extends in the height direction of the frame 1, and the second plate 312 extends in the width direction of the frame 1, one end of the second plate 312 in the extending direction is connected to one end of the first plate 311 in the extending direction, and the other end of the second plate 312 in the extending direction is connected to the first component 32. Figure 2 As shown, the first plate 311 is installed on the front surface of the support plate 13, and the length direction of the first plate 311 is the up and down direction, the thickness direction of the first plate 311 is the left and right direction, and the width direction of the first plate 311 is the front and back direction. The length direction of the second plate 312 is the front and back direction, the thickness direction of the second plate 312 is the up and down direction, the width direction of the second plate 312 is the left and right direction, and the lower end of the first plate 311 is connected to the left side of the second plate 312.

[0039] Specifically, the first cantilever 35 is connected to the bottom surface of the second plate 312 and extends rightward from the bottom surface of the second plate 312 to the right side of the second plate 312. The first guide groove 310 extends vertically through the second plate 312, and the upper end of the first positioning member 323 is engaged with the first guide groove 310 on the first plate 312.

[0040] Furthermore, if Figure 2 As shown, the first pushing assembly 301 further includes a second positioning member 324, which is connected to the bottom surface of the second plate 312 and is located at the front and / or rear end of the second plate 312. Thus, when the bending device bends the parallel flow heat exchanger, the second positioning member 324 can abut against the front side and / or rear side of the parallel flow heat exchanger to position the parallel flow heat exchanger to be bent.

[0041] In some embodiments, the first connecting member 31 further includes a first rib 313 and a second rib 314, wherein the first rib 313 is connected to the first plate 311 and the second plate 312, respectively, and the second rib 314 is connected to the first plate 311 and the second plate 312, respectively, and the first rib 313 and the second rib 314 have a gap in the thickness direction of the frame 1. Figure 2 As shown, the first rib 313 and the second rib 314 are arranged on the upper surface of the second plate 312, and the first rib 313 and the second rib 314 are spaced apart in the front-to-back direction, and the left side of the first rib 313 and the left side of the second rib 314 are both connected to the right side of the first plate 311.

[0042] Furthermore, the first guide groove 310 is located between the first rib 313 and the second rib 314 in the front-to-rear direction.

[0043] In some embodiments, the second pushing assembly 302 includes a second connecting component 33 and a second component 34. The second connecting component 33 is connected to the frame 1, and the position of the second connecting component 33 in the width direction and the height direction of the frame 1 can be changed simultaneously. The second component 34 is connected to the second connecting component 33, and at least a portion of the second component 34 can be changed in the height direction and the width direction of the frame 1. When the bending device bends the parallel flow heat exchanger, at least a portion of the first component 32 and at least a portion of the second component 34 respectively contact the surface of the parallel flow heat exchanger.

[0044] like Figure 1 As shown, the second connecting member 33 and the first connecting member 31 are spaced apart in the left-right direction and arranged symmetrically with each other, and the second member 34 and the first member 32 are spaced apart in the left-right direction and arranged symmetrically with each other. In other words, the second pushing assembly 302 has the same structure as the first pushing assembly 301 and is arranged opposite to each other in the left-right direction.

[0045] Specifically, the second connecting member 33 includes a third plate and a fourth plate. The third plate is mounted on the front surface of the support plate 13 and is spaced apart from the first plate 311 in the left-right direction. The third plate has a length in the up-down direction, a thickness in the left-right direction, and a width in the front-to-back direction. The fourth plate has a length in the front-to-back direction, a thickness in the up-down direction, and a width in the left-to-right direction. The lower end of the third plate is connected to the right side of the fourth plate.

[0046] The second connecting member 33 includes two second cantilever arms extending leftward from the bottom surface of the fourth plate to extend beyond the left side of the fourth plate. The two second cantilever arms are spaced apart in the front-to-back direction. The two second cantilever arms are spaced apart in the left-to-right direction and are arranged opposite to the two first cantilever arms.

[0047] The second component 34 includes a second shaft rod and a second roller. The second shaft rod extends in the front-to-back direction and is connected between the two second cantilever arms. The second roller is sleeved around the outer circumference of the second shaft rod and is rotatable about the second shaft rod. When the bending device bends the parallel flow heat exchanger, the outer circumference of the second roller is adapted to contact the surface of the parallel flow heat exchanger. The second shaft rod is spaced apart from the first shaft rod 321 in the left-right direction, and the second roller is spaced apart from the first roller 322 in the left-right direction.

[0048] The bottom surface of the fourth plate is provided with a third positioning member, which is arranged in the left-right direction opposite to the first positioning member 323. When the bending device bends the parallel flow heat exchanger, the third positioning member can abut against the right end of the parallel flow heat exchanger, thereby improving the bending efficiency.

[0049] A fourth positioning member is also provided on the bottom surface of the fourth plate. The fourth positioning member is arranged opposite the second positioning member 324 in the left-right direction and is located at the front and / or rear end of the fourth plate. Thus, when the bending device bends the parallel flow heat exchanger, the fourth positioning member can abut against the front and / or rear side surfaces of the parallel flow heat exchanger to position the parallel flow heat exchanger to be bent.

[0050] In some specific embodiments, the pushing assembly 3 is connected to the front surface of the support plate 13, and the pushing assembly 3 can move in the left and right directions relative to the support plate 13. Figure 3 As shown, the pushing assembly 3 and the front surface of the support plate 13 are connected via the second guide rail subassembly 16 , so that the pushing assembly 3 can move in the left and right directions relative to the support plate 13 .

[0051] More specifically, the second guide rail subassembly 16 includes a third linear guide rail 161 and a third slide 162. The third linear guide rail 161 is provided on the front surface of the support plate 13 and extends in the left-right direction. The third slide 162 cooperates with the third linear guide rail 161 and can move in the left-right direction on the third linear guide rail 161. The pusher assembly 3 is connected to the front surface of the third slide 162.

[0052] In some embodiments, the bending device for bending the parallel flow heat exchanger also includes a second component 4, which is connected to the frame 1 and can be adjusted in position relative to the frame 1. There are at least two second components 4, and the two second components 4 are located on both sides of the first component 2 in the width direction of the frame 1, and the two second components 4 and the first component 2 are located between the first pushing component 301 and the second pushing component 302 in the width direction of the frame 1.

[0053] The parallel flow heat exchanger has at least three parts to be bent, namely the left part, the middle part, and the right part. The first component 2 is used to bend the middle part, one second component 4 is used to bend the left part, and another second component 4 is used to bend the right part. Thus, the bending device for bending a parallel flow heat exchanger according to an embodiment of the present invention can bend the parallel flow heat exchanger into a bent heat exchanger having at least three bending parts.

[0054] Before placing the parallel flow heat exchanger on the bending device, the heat exchange tubes at the portion to be bent can be twisted first. Specifically, the portion to be bent can be twisted manually. It can be understood that the present invention is not limited to this. For example, the heat exchange tubes can also be twisted by machine tooling.

[0055] In some embodiments, the second component 4 includes a third member 41 and a fourth member 42, the third member 41 is connected to the frame 1, the fourth member 42 and the third member 41 are arranged along the height direction of the frame 1, and at least one of the third member 41 and the fourth member 42 can be moved in the height direction of the frame 1. Figure 1 As shown, the third member 41 is connected to the front surface of the support plate 13, and the fourth member 42 is located above the first member 41. The third member 41 and / or the fourth member 42 are movable in the vertical direction. It will be understood that the left or right portion to be bent in the parallel flow heat exchanger is adapted to be located between the fourth member 42 and the third member 41 so as to be bent under the action of the fourth member 42 and the third member 41.

[0056] Furthermore, the fourth piece 42 is movable in the front-to-back direction relative to the third piece 41, so that the third piece 41 and the fourth piece 42 can be separated by a certain distance in the up-down direction, while the third piece 41 and the fourth piece 42 can be separated in the front-to-back direction to facilitate the placement of the parallel flow heat exchanger or the removal of the bent heat exchanger.

[0057] Specifically, the second component 4 is connected to the front surface of the support plate 13, and the second component 4 can move in the up and down direction relative to the support plate 13, and can also move in the left and right direction. Specifically, Figure 3 As shown, the second component 4 and the front surface of the support plate 13 are connected by the first guide rail subassembly 14, so that the second component 4 can move in both the vertical direction and the horizontal direction. More specifically, the first guide rail subassembly 14 includes a first linear guide 141, a first slide 142, a second linear guide 143, and a second slide 144. The front surface of the support plate 13 is provided with a first linear guide 141 extending in the horizontal direction. The first linear guide 141 is equipped with a first slide 142 that can extend in the horizontal direction along the first linear guide 141. The first slide 142 is equipped with a second linear guide 143 extending in the vertical direction. The second linear guide 143 is equipped with a second slide 144 that can extend in the vertical direction along the second linear guide 143. The upper end of the second component 3 is connected to the guide plate 15, which is connected to the front surface of the second slide 144.

[0058] In related art, triple-bend heat exchangers (i.e., heat exchangers with three bends after bending) are bent independently, for example, using separate bending equipment to complete the three bends. The equipment is then used to perform the push bend, primary bend, secondary bend, and tertiary bend, respectively. Finally, the heat exchanger is manually corrected to the required dimensions. However, this bending method has significant drawbacks. For example, each push and bend process is independent of each other, making it difficult to integrate the various processes. Repeated positioning in each process can easily lead to positional deviations.

[0059] The bending device according to the embodiment of the present invention can realize bending of three bending parts at one time, which can save time and improve bending efficiency. Therefore, the bending device according to the embodiment of the present invention can also be called a heat exchanger three-bending machine. Specifically, the bending device according to the embodiment of the present invention, after the parallel flow heat exchanger is placed on the bending device, the first component 2 clamps the middle part to be bent, the first pushing component 301 presses against the left end of the parallel flow heat exchanger and pushes the parallel flow heat exchanger to the right, the second pushing component 302 presses against the right end of the heat exchanger and pushes the parallel flow heat exchanger to the left, the second component 4 on the left can clamp the left part to be bent of the parallel flow heat exchanger and push the parallel flow heat exchanger to the right and / or upward, the second component 4 on the right can clamp the right part to be bent of the parallel flow heat exchanger and push the parallel flow heat exchanger to the left and / or upward, thereby realizing the bending of the middle part to be bent, the left part to be bent and the right part to be bent of the parallel flow heat exchanger.

[0060] In some embodiments, as Figure 1 、 Figure 2 and Figure 4 As shown, the first component 2 further includes a first mold frame 23 , and the lower end of the first mold frame 23 is connected to the upper end of the lower support body 11 .

[0061] The first piece 21 is connected to the first mold frame 23 and can move in the up and down directions. The second piece 22 is connected to the upper end of the first mold frame 23 and can move in the front and back directions relative to the first mold frame 31, so that the second piece 22 is opposite to the first piece 21 in the up and down directions, so that the second piece 22 can cooperate with the first piece 21 to clamp or release the heat exchanger at the middle part to be bent.

[0062] Furthermore, the first component 2 also includes a first lower mold driving component 24 , and the first piece 21 is connected to the first mold frame 23 via the first lower mold driving component 24 so that the first piece 21 can move in the up and down directions relative to the first mold frame 23 .

[0063] Specifically, the first mold frame 23 includes a first top plate 231 and a first bottom plate 232 that are opposed to each other in the vertical direction. The first bottom plate 232 is located below the first top plate 231, that is, the first bottom plate 232 is lower than the first top plate 231, and there is a gap between the first top plate 231 and the first bottom plate 232. A first guide rail 233 extending in the front-to-back direction is provided at the upper end of the first top plate 231. The first guide rail 233 is equipped with a first slider 234, which is connected to the second member 22. It is understood that the second member 22 is connected to a first upper mold driving component 25. Specifically, the first upper mold driving component 25 is a hydraulic cylinder or a pneumatic cylinder, the piston of which is connected to the second member 22, so that the hydraulic cylinder or the cylinder drives the second member 22 to move forward and backward along the guide rail.

[0064] The first lower mold drive component 24 includes a first motor 241, a first synchronous pulley assembly 242, a first drive shaft 243, and a first movable member 244. The first motor 241 is located between the first top plate 231 and the first bottom plate 232, and the first motor 241 is connected to the upper end of the first bottom plate 232. The first synchronous pulley assembly 242 is located below the first bottom plate 232. The output shaft of the first motor 241 passes through the first bottom plate 232 and is connected to the first synchronous pulley assembly 242. The lower end of the first drive shaft 243 is connected to the first synchronous pulley assembly 242, the upper end of the first drive shaft 243 passes through the first bottom plate 232 and is located between the first bottom plate 232 and the first top plate 231. The first movable member 244 is located between the first bottom plate 232 and the first top plate 231, and the first movable member 244 is sleeved on the outside of the first drive shaft 243. When the first driving shaft 243 rotates, the first moving member 244 can move in the up and down directions. The first moving member 244 is connected to the first member 21, so as to drive the second member 22 to move in the up and down directions under the drive of the first driving shaft 243, so as to achieve the clamping and release of the left and right parts to be bent.

[0065] Specifically, the first synchronous pulley assembly 242 includes a first main pulley 2421, a first secondary pulley 2422 and a first synchronous belt (not shown in the figure), the first main pulley 2421 is connected to the output shaft of the first motor 241; the first secondary pulley 2422 is connected to the lower end of the first drive shaft 243; the first synchronous belt connects the first main pulley 2421 and the first secondary pulley 2422. Figure 1 and Figure 4 As shown, the first main pulley 2421, the first slave pulley 2422 and the first synchronous belt are all located below the first base plate 232, and the first main pulley 2421 and the first slave pulley 2422 are spaced apart in the left and right directions. The output shaft of the first motor 241 passes through the first base plate 232 from the top of the first base plate 232 and is connected to the first main pulley 2421, and the lower end of the first drive shaft 243 is connected to the first slave pulley 2422. The first synchronous belt is wound around the first main pulley 2421 and the first slave pulley 2422 to connect the first main pulley 2421 and the first slave pulley 2422, thereby realizing belt transmission.

[0066] Furthermore, the first lower mold driving component 24 also includes a first connecting component 245, the first connecting component 245 includes a first guide sleeve 2451, a first connecting rod 2452 and a first connecting plate 2453, the first connecting plate 2453 is located between the first bottom plate 232 and the first top plate 231, the first connecting plate 2453 is connected to the first moving member 244, the upper end of the first connecting plate 2453 is connected to the first connecting rod 2452, the first top plate 231 is provided with a mounting hole, the first guide sleeve 2451 is installed on the first top plate 231 through the mounting hole, the upper end of the first connecting rod 2452 extends into the first guide sleeve 2451 and passes through the first guide sleeve 2451 to be connected to the first member 21, and the upper end of the first connecting rod 2452 is located above the first top plate 231.

[0067] Specifically, the first connecting rod 2452 includes a front first connecting rod and a rear first connecting rod spaced apart in the front-to-back direction, the first guide sleeve 2451 includes a front first guide sleeve and a rear first guide sleeve spaced apart in the front-to-back direction, the upper end of the front first connecting rod passes through the front first guide sleeve and is connected to the first member 21, the lower end of the front first connecting rod is connected to the first connecting plate 2453, the upper end of the rear first connecting rod passes through the rear first guide sleeve and is connected to the first member 21, and the lower end of the rear first connecting rod is connected to the first connecting plate 2453. Furthermore, the first moving member 244 is located between the front first connecting rod and the rear first connecting rod.

[0068] In some embodiments, as Figure 1 、 Figure 2 and Figure 5 As shown, the second assembly 4 further includes a second mold frame 43. The second mold frame 43 is connected to the front surface of the support plate 13 and is movable in both the left-right and up-down directions relative to the support plate 13. Specifically, a guide plate 15 is connected to the upper end of the second mold frame 43, which is connected to the front surface of the second slide plate 144. This allows the second mold frame 43 to move both left-right and up-down via the first guide rail subassembly 14.

[0069] The third member 41 is connected to the second mold frame 43 and is movable in the vertical direction relative to the second mold frame 43. The fourth member 42 is connected to the lower end of the second mold frame 43 and is movable in the front-to-back direction relative to the second mold frame 43, so that the fourth member 42 and the third member 41 are opposite in the vertical direction. The fourth member 42 can cooperate with the third member 41 to clamp or release the heat exchanger at the second bend.

[0070] Furthermore, the second component 4 also includes a second upper mold driving component 44, and the third piece 41 is connected to the second mold frame 43 through the second upper mold driving component 44 to enable the third piece 41 to move in the up and down directions relative to the second mold frame 43.

[0071] Specifically, the second mold frame 43 includes a second top plate 431 and a second bottom plate 432, which are positioned vertically opposite each other. The second bottom plate 432 is located below the second top plate 431, i.e., the second bottom plate 432 is lower than the second top plate 431, with a gap between them. A guide rail is provided at the lower end of the second bottom plate 432, and a slider is provided at the upper end of the fourth member 42. The slider engages the guide rail, and the fourth member 42 is connected to a hydraulic cylinder or pneumatic cylinder, which drives the fourth member 42 to move forward and backward along the guide rail.

[0072] The second upper mold driving component 44 includes a second motor 441, a second synchronous pulley assembly 442, a second drive shaft 443, and a second moving member 444. The second motor 441 is located between the second top plate 431 and the second bottom plate 432, and is connected to the lower end of the second top plate 431. The second synchronous pulley assembly 442 is located above the second top plate 431, and the output shaft of the second motor 441 passes through the second top plate 431 and is connected to the second synchronous pulley assembly 442.

[0073] The upper end of the second drive shaft 443 is connected to the second synchronous pulley assembly 442, and the lower end of the second drive shaft 443 passes through the second top plate 431 and is located between the second top plate 431 and the second bottom plate 432. The second moving member 444 is located between the second top plate 431 and the second bottom plate 432, and the second moving member 444 is sleeved on the outside of the second drive shaft 443. When the second drive shaft 443 rotates, the second moving member 444 can move in the up and down directions. The second moving member 444 is connected to the third member 41 to drive the third member 41 to move in the up and down directions under the drive of the second drive shaft 443, so as to achieve clamping or release of the opposite bending part.

[0074] Specifically, the second synchronous pulley assembly 442 includes a second main pulley 4421, a second secondary pulley 4422, and a second synchronous belt (not shown in the figure). The second main pulley 4421 is connected to the output shaft of the second motor 441. The second secondary pulley 4422 is connected to the upper end of the second drive shaft 443. The second synchronous belt connects the second main pulley 4421 and the second secondary pulley 4422. Figure 1 and Figure 5 As shown, the second main pulley 4421, the second secondary pulley 4422 and the second synchronous belt are all located above the second top plate 431, and the second main pulley 4421 and the second secondary pulley 4422 are spaced apart in the left and right directions. The output shaft of the second motor 441 passes through the second top plate 431 and is connected to the second main pulley 4421, and the upper end of the second drive shaft 443 is connected to the second secondary pulley 4422. The second synchronous belt is wound around the second main pulley 4421 and the second secondary pulley 4422 to connect the second main pulley 4421 and the second secondary pulley 4422, thereby realizing belt transmission.

[0075] Furthermore, the second upper mold driving component 44 also includes a second connecting assembly 445, which includes a second guide sleeve 4451, a second connecting rod 4452 and a second connecting plate 4453. The second connecting plate 4453 is located between the second bottom plate 432 and the second top plate 431. The second connecting plate 4453 is connected to the second movable member 444. The lower end of the second connecting plate 4453 is connected to the second connecting rod 4452. The second bottom plate 432 is provided with a mounting hole. The second guide sleeve 4451 is installed on the second bottom plate 432 through the mounting hole. The lower end of the second connecting rod 4452 extends into the second guide sleeve 4451 and passes through the second guide sleeve 4451, so that the lower end of the second connecting rod 4452 is connected to the third member 41 located below the second bottom plate 432.

[0076] Specifically, the second connecting rod 4452 includes a front second connecting rod and a rear second connecting rod arranged at intervals along the front-to-back direction, and the second guide sleeve 4451 includes a front second guide sleeve and a rear second guide sleeve arranged at intervals along the front-to-back direction. The lower end of the front second connecting rod passes through the front second guide sleeve and is connected to the third piece 41, the upper end of the front second connecting rod is connected to the second connecting plate 4453, the lower end of the rear second connecting rod passes through the rear second guide sleeve and is connected to the third piece 41, and the upper end of the second connecting rod is connected to the second connecting plate 4453.

[0077] Furthermore, the second moving member 444 is located between the front second connecting rod and the rear second connecting rod. Optionally, the second guide sleeve 4451 includes a sleeve body and a flange connected to the lower end of the sleeve body, the flange is provided at the bottom of the second bottom plate 432, and the upper end of the sleeve body extends into the mounting hole and passes through the second bottom plate 432 and is located between the second bottom plate 432 and the second top plate 431.

[0078] In other embodiments, the second upper die driving component 44 is a hydraulic cylinder or a pneumatic cylinder, and the piston of the hydraulic cylinder or the pneumatic cylinder is connected to the third member 41. In other words, the second upper die driving component 44 can be driven by a hydraulic cylinder or a pneumatic cylinder in addition to a motor, but the present invention is not limited thereto, and the specific driving method can be selected according to actual needs.

[0079] In some embodiments, the second component 4 further includes a telescopic assembly (not shown). The upper end of the telescopic assembly is positioned in a positioning hole (not shown) in the third component 41, and the lower end of the telescopic assembly can extend or retract into the positioning hole. Specifically, the bottom of the third component 41 is provided with a positioning hole, and the upper end of the telescopic assembly is positioned in the positioning hole. The lower end of the telescopic assembly can extend or retract into the positioning hole. According to the bending device of the present invention, the telescopic assembly can further position the heat exchanger during the bending process.

[0080] Furthermore, the telescopic assembly includes a telescopic block and a spring. One end of the spring is fixed in the positioning hole, and the other end of the spring is connected to the telescopic block. The telescopic block can extend or retract into the positioning hole. Specifically, the upper end of the spring is fixed in the positioning hole, and the lower end of the spring is connected to the telescopic block. Under the action of the spring, the telescopic block can extend or retract into the positioning hole.

[0081] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0083] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0084] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0085] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0086] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bending device for bending a parallel flow heat exchanger, characterized in that: include: frame; A first component, the first component is used for bending the heat exchanger and includes a first piece and a second piece, the first piece is connected to the frame, the second piece and the first piece are arranged along the height direction of the frame, and at least one of the first piece and the second piece can be moved in the height direction of the frame; A pushing assembly, wherein the pushing assembly comprises a first pushing assembly and a second pushing assembly, wherein the first pushing assembly and the second pushing assembly are arranged along the width direction of the frame, and the first pushing assembly and the second pushing assembly are respectively located on both sides of the first assembly in the width direction of the frame, wherein the first pushing assembly comprises a first connecting component and a first component, wherein the first connecting component is connected to the frame, and the position of the first connecting component can be changed simultaneously in the width direction and the height direction of the frame, wherein the first component is connected to the first connecting component, and at least a part of the first component can be changed simultaneously in the width direction and the height direction of the frame, wherein the second pushing assembly comprises a second connecting component and a second component, wherein the second connecting component is connected to the frame, and the position of the second connecting component can be changed simultaneously in the width direction and the height direction of the frame, wherein the second component is connected to the second connecting component, and at least a part of the second component can be changed simultaneously in the height direction and the width direction of the frame, wherein when the bending device bends the parallel flow heat exchanger, at least a part of the first component and at least a part of the second component respectively contact the surface of the parallel flow heat exchanger for positioning; A second component, the second component is connected to the frame and its position relative to the frame can be changed, there are at least two second components, the two second components are located on both sides of the first component in the width direction of the frame, and the two second components and the first component are located between the first pushing component and the second pushing component in the width direction of the frame.

2. The bending device for bending a parallel flow heat exchanger according to claim 1, characterized in that: The first component comprises: a first shaft rod, the first shaft rod being connected to the first connecting member; a first roller, wherein the first roller has an outer peripheral wall, the outer peripheral contour of the cross section of the outer peripheral wall of the first roller is circular, the first roller further has a first channel, the first channel penetrates the first roller in the length direction of the first roller, and the outer peripheral wall of the first roller is arranged around the first channel, At least part of the first shaft rod is arranged in the first channel, the cross-sectional area of ​​the first channel is larger than the cross-sectional area of ​​the first shaft rod, the length direction of the first roller is perpendicular to the width direction of the frame, and the outer peripheral wall of the first roller can rotate around the first shaft rod.

3. The bending device for bending a parallel flow heat exchanger according to claim 2, characterized in that: The length direction of the first roller is perpendicular to the height direction of the frame, and the length direction of the first roller is parallel to the thickness direction of the frame.

4. The bending device for bending a parallel flow heat exchanger according to any one of claims 2 to 3, characterized in that: The first pushing assembly also includes a first positioning member, which is connected to the first connecting member. When the bending device bends the parallel flow heat exchanger, the first positioning member abuts against one end of the parallel flow heat exchanger in the length direction of the heat exchanger.

5. The bending device for bending a parallel flow heat exchanger according to claim 4, characterized in that: The first connecting component is provided with a first guide groove extending along the length direction of the first roller, a part of the first positioning member is arranged in the first guide groove, another part of the first positioning member is located outside the first guide groove, and the first positioning member is movable along the extension direction of the first guide groove.

6. The bending device for bending a parallel flow heat exchanger according to any one of claims 1 to 3, characterized in that: The first connecting component includes a first plate and a second plate, the first plate extends along the height direction of the frame, the second plate extends along the width direction of the frame, one end of the second plate in the extending direction is connected to one end of the first plate in the extending direction, and the other end of the second plate in the extending direction is connected to the first component.

7. The bending device for bending a parallel flow heat exchanger according to claim 6, characterized in that: The first connecting component further includes a first rib plate and a second rib plate, wherein the first rib plate is connected to the first plate and the second plate respectively, and the second rib plate is connected to the first plate and the second plate respectively, and the first rib plate and the second rib plate have a gap in the thickness direction of the frame.

8. The bending device for bending a parallel flow heat exchanger according to any one of claims 1 to 3, characterized in that: The second component includes a third member and a fourth member, the third member is connected to the frame, the fourth member and the third member are arranged along the height direction of the frame, and at least one of the third member and the fourth member is positionally variable in the height direction of the frame.

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