Fin tube straightening and pre-pressing machine

Abstract

The application discloses a finned tube shaping pre-pressing machine and relates to the field of finned tube processing equipment.The technical scheme is as follows: the machine comprises a rack and a conveying mechanism arranged on the rack;the conveying mechanism comprises first conveying chains and second conveying chains which are symmetrically arranged left and right;product carriers are arranged at the relative positions of the first conveying chains and the second conveying chains;the second conveying chains are fixed on the rack;the rack is slidably connected with a sliding seat;the first conveying chains are fixed on the sliding seat;the rack is provided with a driving assembly for driving the sliding seat to slide towards or away from the first conveying chains;the rack is sequentially provided with a pushing and limiting mechanism, an alignment mechanism, a pre-pressing mechanism and a discharging mechanism for conveying the pre-pressed finned tube to the next working station.The application has the advantages of high processing precision and processing efficiency and strong applicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of finned tube processing equipment, more particularly, it relates to a finned tube shaping and pre-pressing machine. BACKGROUND

[0002] The finned tube is a heat exchange element. In order to improve the heat exchange efficiency, a fin is usually added to the surface of the heat exchange tube to increase the outer surface area (or inner surface area) of the heat exchange tube, so as to improve the heat exchange efficiency. Such a heat exchange tube.

[0003] A finned tube in the prior art comprises a tube body, an insulating film arranged in the tube body, a heat-conducting ceramic sheet arranged in the insulating film, and two electrode sheets, the heat-conducting ceramic sheet is located between the two electrode sheets, and protrusions are formed on both sides of the tube body. In the production process, the heat-conducting ceramic sheet and the electrode sheet need to be pushed into position, and then a pre-pressing device is used to pre-press the tube body to fix the heat-conducting ceramic sheet, the electrode sheet and the insulating film in the tube body. In the prior art, semi-automatic electrode sheet alignment equipment, heat-conducting ceramic sheet alignment equipment and pre-pressing equipment are usually used, and manual assistance is used to realize the above-mentioned processes, so that the processing precision of the finned tube is low, and the working efficiency is not high.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a finned tube shaping and pre-pressing machine, which has the advantages of high processing precision and processing efficiency, and strong applicability.

[0006] The above technical purpose of the present application is achieved by the following technical scheme: a finned tube shaping and pre-pressing machine, comprising a rack and a conveying mechanism arranged on the rack, the conveying mechanism comprises first and second conveying chains arranged symmetrically left and right, the relative positions of the first and second conveying chains are respectively provided with product carriers, the two opposite product carriers can be respectively received at both ends of the finned tube body, the second conveying chain is fixed on the rack, a sliding seat is slidably connected on the rack, the first conveying chain is fixed on the sliding seat, a driving assembly is arranged on the rack for driving the sliding seat to slide towards or away from the first conveying chain, the rack is sequentially provided with a push limiting mechanism for pushing the heat-conducting ceramic sheet to a target position, an alignment mechanism for aligning the two electrode sheets, a pre-pressing mechanism for pressing the finned tube body to fix the heat-conducting ceramic sheet and the electrode sheet in the finned tube body, and a discharging mechanism for conveying the pre-pressed finned tube body to the next station in the conveying direction of the conveying mechanism.

[0007] In one of the embodiments, the pushing and limiting mechanism comprises a first limiting component arranged on the slide at one side of the conveying chain, a heat-conducting ceramic sheet pushing component, a second limiting component arranged on the frame at one side of the second conveying chain, and a heat-conducting ceramic sheet tail limiting component. The first limiting component and the second limiting component are oppositely arranged, and the heat-conducting ceramic sheet pushing component and the heat-conducting ceramic sheet tail limiting component are oppositely arranged. The heat-conducting ceramic sheet pushing component comprises a first pushing cylinder mounted on the slide through a mounting frame, and a heat-conducting ceramic sheet pushing tongue arranged on the output end of the first pushing cylinder. The heat-conducting ceramic sheet tail limiting component comprises a second pushing cylinder fixed on the frame, a clamping seat fixed on the output end of the second pushing cylinder, and two tail limiting clamping blocks fixed on the clamping seat. The first limiting component comprises a first support fixed on the slide, a first longitudinal cylinder fixed on the first support, a first connecting beam fixed on the output end of the first longitudinal cylinder, and a first side wall limiting clamping block arranged on the first connecting beam. The first side wall limiting clamping block is located in front of the heat-conducting ceramic sheet pushing tongue. The second limiting component comprises a second support fixed on the frame, a second longitudinal cylinder fixed on the second support, a second connecting beam fixed on the output end of the second longitudinal cylinder, and a second side wall limiting clamping block arranged on the second connecting beam. The second side wall limiting clamping block is located in front of the tail limiting clamping block.

[0008] In one of the embodiments, the aligning mechanism comprises a third side wall limiting clamping block fixed on the first connecting beam, a fourth side wall limiting clamping block fixed on the second connecting beam, and a shaping and aligning component arranged on the frame at one side of the fourth side wall limiting clamping block. The third side wall limiting clamping block and the fourth side wall limiting clamping block are oppositely arranged. The shaping and aligning component comprises a third support fixed on the frame, a first cylinder fixed on the third support, a fixing plate fixed on the output end of the first cylinder, a second cylinder fixed on the fixing plate, and a first clamping jaw cylinder fixed on the output end of the second cylinder. Two claw fingers of the first clamping jaw cylinder are respectively provided with a pulling block. The two pulling blocks can simultaneously pull two electrode sheets away from the finned tube body. A support is fixed on the fixing plate. A wedge block is fixed on the support. The wedge block is located between the two pulling blocks. The wedge block can push the two electrode sheets back towards the finned tube body along the two electrode sheets.

[0009] In one of the embodiments, the pre-pressing mechanism is arranged in two, and the two pre-pressing mechanisms are symmetrically arranged along the left and right sides of the conveying mechanism. The pre-pressing mechanism comprises a fourth support fixed on the frame or the slide, a pre-pressing cylinder fixed on the fourth support in the longitudinal direction, and a pressing block fixed on the output end of the pre-pressing cylinder. The pressing block is provided with a pressing groove. The pressing groove can press the finned tube body downward and make the pressing position concave.

[0010] In one of the embodiments, the unloading mechanism comprises a Z-axis movement module fixed on the rack, a second clamping jaw cylinder fixed on the output end of the Z-axis movement module, and a push rod cylinder arranged on the sliding seat on the side of the second clamping jaw cylinder, wherein two jaw fingers of the clamping jaw cylinder are respectively provided with track wheels, and the two track wheels can respectively roll in contact with two protrusions of the finned tube body.

[0011] In summary, the present application has the following advantages: through the arrangement of the conveying mechanism, the pushing and limiting mechanism, the alignment mechanism, the pre-pressing mechanism and the unloading mechanism, the automatic operation of pushing the heat-conducting ceramic sheet to the target position of the finned tube, aligning the two electrode sheets, pressing the finned tube body to fix the heat-conducting ceramic sheet and the electrode sheet in the finned tube body, and pushing the finned tube to the next station is realized, the processing precision and the processing efficiency of the finned tube are effectively improved, and through the arrangement of the sliding seat and the driving assembly, the spacing between the two opposite product carriers can be adjusted, so that the finned tube of different lengths can be applied, and good applicability is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 FIG. 1 is a structural schematic diagram of a finned tube shaping and pre-pressing machine according to an embodiment of the present application;

[0013] Figure 2 FIG. 2 is a structural schematic diagram of a pushing and limiting mechanism in the finned tube shaping and pre-pressing machine according to the embodiment of the present application;

[0014] Figure 3 FIG. 3 is a structural schematic diagram of a shaping and alignment assembly in the finned tube shaping and pre-pressing machine according to the embodiment of the present application;

[0015] Figure 4 FIG. 4 is a structural schematic diagram of a pre-pressing mechanism in the finned tube shaping and pre-pressing machine according to the embodiment of the present application;

[0016] Figure 5 FIG. 5 is a structural schematic diagram of an unloading mechanism in the finned tube shaping and pre-pressing machine according to the embodiment of the present application.

[0017] In the figure: 1, rack; 2, first conveying chain; 3, second conveying chain; 4, product carrier; 5, sliding seat; 6, driving assembly; 7, push limiting mechanism; 71, first limiting assembly; 711, first support; 712, first longitudinal air cylinder; 713, first connecting beam; 714, first side wall limiting clamp block; 72, second limiting assembly; 721, second support; 722, second longitudinal air cylinder; 723, second connecting beam; 724, second side wall limiting clamp block; 73, heat-conducting ceramic sheet pushing assembly; 731, first pushing air cylinder; 732, heat-conducting ceramic sheet pushing tongue; 74, heat-conducting ceramic sheet tail limiting assembly; 741, second pushing air cylinder; 742, clamping seat; 743, tail end limiting clamp block; 8, alignment mechanism; 81, third side wall limiting clamp block; 82, four-side wall limiting clamp block; 83, shaping alignment assembly; 831, third support; 832, first air cylinder; 833, fixed plate; 834, second air cylinder; 835, first clamping jaw air cylinder; 836, pull block; 837, strut; 838, wedge block; 9, pre-pressing mechanism; 91, fourth support; 92, pre-pressing air cylinder; 93, pressing block; 931, pressing groove; 10, blanking mechanism; 101, Z-axis movement module; 102, second clamping jaw air cylinder; 103, push rod air cylinder; 104, track wheel. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0019] As Figure 1 shown, the embodiment of the present application provides a finned tube shaping and pre-pressing machine, which comprises a rack 1 and a conveying mechanism arranged on the rack 1. The conveying mechanism comprises first conveying chains 2 and second conveying chains 3 arranged symmetrically left and right. The relative positions of the first conveying chains 2 and the second conveying chains 3 are respectively provided with product carriers 4, and two opposite product carriers 4 can be respectively received on the two ends of a finned tube body. The second conveying chains 3 are fixed on the rack 1. A sliding seat 5 is slidingly connected to the rack 1. The first conveying chains 2 are fixed on the sliding seat 5. A driving assembly 6 for driving the sliding seat 5 to slide towards or away from the first conveying chains 2 is arranged on the rack 1. The driving assembly 6 is a lead screw nut mechanism. The output end of the lead screw nut mechanism is fixedly connected with the sliding seat 5. The rack 1 is sequentially provided with a push limiting mechanism 7 for pushing heat-conducting ceramic sheets to target positions, an alignment mechanism 8 for aligning two electrode sheets, a pre-pressing mechanism 9 for pressing the finned tube body to press and fix the heat-conducting ceramic sheets and the electrode sheets in the finned tube body, and a blanking mechanism 10 for conveying the pre-pressed finned tube body to a next station in the conveying direction of the conveying mechanism.

[0020] The finned tube shaping and pre-pressing machine works as follows: first, the two ends of the finned tube body pre-assembled with the heat-conducting ceramic sheet, the insulating film and the electrode sheet are placed on the two opposite product carriers 4, the conveying mechanism drives the finned tube body to move to the push-limiting mechanism 7, the push-limiting mechanism 7 pushes the heat-conducting ceramic sheet to the target position of the finned tube body, then the finned tube body is conveyed to the alignment mechanism 8, the alignment mechanism 8 aligns the two electrode sheets, then the finned tube body is conveyed to the pre-pressing mechanism 9, the pre-pressing mechanism 9 presses the finned tube body so that the heat-conducting ceramic sheet and the electrode sheet are fixed in the finned tube body, finally, the pre-pressed finned tube body is conveyed to the discharging mechanism 10, and the finned tube body after shaping and pre-pressing is discharged.

[0021] The above-mentioned mode realizes the automatic operation of pushing the heat-conducting ceramic sheet to the target position of the finned tube, aligning the two electrode sheets, pressing the finned tube body to fix the heat-conducting ceramic sheet and the electrode sheet in the finned tube body and pushing the finned tube to the next station through the setting of the conveying mechanism, the push-limiting mechanism 7, the alignment mechanism 8, the pre-pressing mechanism 9 and the discharging mechanism 10, effectively improves the processing precision and efficiency of the finned tube, and through the setting of the sliding seat 5 and the driving assembly 6, the spacing between the two opposite product carriers 4 can be adjusted, so that it can be applied to finned tubes of different lengths, and has good applicability.

[0022] In this embodiment, as shown in Figure 2 The push-limiting mechanism 7 includes a first limiting assembly 71 and a heat-conducting ceramic sheet pushing assembly 73 arranged on the sliding seat 5 on one side of the conveying chain, a second limiting assembly 72 and a heat-conducting ceramic sheet tail limiting assembly 74 arranged on the rack 1 on one side of the second conveying chain 3, the first limiting assembly 71 and the second limiting assembly 72 are oppositely arranged, and the heat-conducting ceramic sheet pushing assembly 73 and the heat-conducting ceramic sheet tail limiting assembly 74 are oppositely arranged.

[0023] The heat-conducting ceramic sheet pushing assembly 73 includes a first pushing cylinder 731 mounted on the sliding seat 5 through a mounting frame, and a heat-conducting ceramic sheet pushing tongue 732 arranged on the output end of the first pushing cylinder 731, and the heat-conducting ceramic sheet tail limiting assembly 74 includes a second pushing cylinder 741 fixed on the rack 1, a clamp seat 742 fixed on the output end of the second pushing cylinder, and two tail limiting clamping blocks 743 fixed on the clamp seat 742.

[0024] The first limiting assembly 71 includes a first support 711 fixed on the sliding seat 5, a first longitudinal cylinder 712 fixed on the first support 711, a first connecting beam 713 fixed on the output end of the first longitudinal cylinder 712, and a first side wall limiting clamping block 714 arranged on the first connecting beam 713, and the first side wall limiting clamping block 714 is located in front of the heat-conducting ceramic sheet pushing tongue 732.

[0025] The second limiting assembly 72 comprises a second bracket 721 fixed on the rack 1, a second longitudinal cylinder 722 fixed on the second bracket 721, a second connecting beam 723 fixed on the output end of the second longitudinal cylinder 722, and a second side wall limiting clamp block 724 arranged on the second connecting beam 723, which is located directly in front of the tail end limiting clamp block 743.

[0026] When the push limiting mechanism 7 works, the first side wall limiting clamp block 714 and the second side wall limiting clamp block 724 respectively press down and limit the finned tube, so that the finned tube does not shake, the tail end limiting clamp block 743 moves to one end of the finned tube, the heat-conducting ceramic sheet pushes the tongue 732 to push the heat-conducting ceramic sheet towards the tail end limiting clamp block 743, and when it abuts against the tail end limiting clamp block 743, the pushing is stopped, so as to push the heat-conducting ceramic sheet to the corresponding position.

[0027] In the above manner, the heat-conducting ceramic sheet is accurately pushed.

[0028] In the embodiment, as shown in Figure 2 and Figure 3 The alignment mechanism 8 comprises a third side wall limiting clamp block 81 fixed on the first connecting beam 713, a fourth side wall limiting clamp block 82 fixed on the second connecting beam 723, and a shaping alignment assembly 83 arranged on the rack 1 on one side of the fourth side wall limiting clamp block 82, the third side wall limiting clamp block 81 and the fourth side wall limiting clamp block 82 are oppositely arranged, and the shaping alignment assembly 83 comprises a third bracket 831 fixed on the rack 1, a first cylinder 832 fixed on the third bracket 831, a fixed plate 833 fixed on the output end of the first cylinder 832, a second cylinder 834 fixed on the fixed plate 833, and a first clamping jaw cylinder 835 fixed on the output end of the second cylinder 834, two clamping jaws of the first clamping jaw cylinder 835 are respectively provided with pull blocks 836, the two pull blocks 836 can simultaneously pull out two electrode sheets away from the finned tube body, the fixed plate 833 is fixed with a support column 837, the support column 837 is fixed with a wedge block 838, the wedge block 838 is located between the two pull blocks 836, and the wedge block 838 can push back the two electrode sheets towards the finned tube body between the two electrode sheets.

[0029] It should be noted that the two electrode sheets respectively have bosses that can be engaged with the two pull blocks 836.

[0030] When the alignment mechanism 8 is working, the third side wall limiting clamp 81 and the fourth side wall limiting clamp 82 press down and limit the two ends of the finned tube respectively. The first clamping claw cylinder 835 drives the two pulling blocks 836 to clamp the two electrode plates. The second cylinder 834 drives the two electrode plates to pull outward a certain distance at the same time so that the two electrode plates are aligned. The first cylinder 832 drives the wedge block 838 to retract the two first electrode plates inward to return them to their original positions.

[0031] The above method achieves precise alignment of the two electrode plates through precise alignment and limiting operations, and has the advantages of high alignment accuracy and good operational reliability.

[0032] In this embodiment, as Figure 4 As shown, there are two pre-compression mechanisms 9, which are symmetrically arranged on the left and right sides of the conveying mechanism. Each pre-compression mechanism 9 includes a fourth bracket 91 fixed on the frame 1 or the slide 5, a pre-compression cylinder 92 fixed longitudinally on the fourth bracket 91, and a pressure block 93 fixed on the output end of the pre-compression cylinder 92. The pressure block 93 is provided with a pressure groove 931, which can press the finned tube body downward and make its pressing position concave.

[0033] The above settings ensure that the processed finned tubes are stable and not prone to loosening or falling off.

[0034] In this embodiment, as Figure 5 As shown, the unloading mechanism 10 includes a Z-axis motion module 101 fixed on the frame 1, a second gripper cylinder 102 fixed on the output end of the Z-axis motion module 101, and a push rod cylinder 103 located on the slide block 5 on one side of the second gripper cylinder 102. The two gripper fingers of the gripper cylinder are respectively provided with track wheels 104, and the two track wheels 104 can respectively roll into contact with the two protrusions of the finned tube body.

[0035] When the above-mentioned unloading mechanism is working, the second gripper cylinder first clamps the two sides of the finned tube body, so that the two track wheels respectively roll into contact with the two protrusions of the finned tube body. Then, it drives the finned tube body to rise, and the push rod cylinder pushes the finned tube body outward, thus realizing the unloading of the finned tube body.

[0036] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A finned tube shaping pre-pressing machine, comprising a frame (1) and a conveying mechanism arranged on the frame (1), the conveying mechanism comprising a first conveying chain (2) and a second conveying chain (3) arranged symmetrically left and right, and product carriers (4) are arranged at opposite positions of the first conveying chain (2) and the second conveying chain (3) respectively, two opposite product carriers (4) can be respectively received on two ends of a finned tube body, characterized in that: The second conveying chain (3) is fixed on the rack (1), the sliding seat (5) is slidably connected on the rack (1), the first conveying chain (2) is fixed on the sliding seat (5), the driving assembly (6) for driving the sliding seat (5) to slide towards or away from the first conveying chain (2) is arranged on the rack (1), the rack (1) is sequentially provided with the push limiting mechanism (7) for pushing the heat-conducting ceramic sheet to the target position, the alignment mechanism (8) for aligning two electrode sheets, the pre-pressing mechanism (9) for pressing the finned tube body to press and fix the heat-conducting ceramic sheet and the electrode sheet in the finned tube body, and the discharging mechanism (10) for conveying the pre-pressed finned tube body to the next station in the conveying direction of the conveying mechanism; the push limiting mechanism (7) comprises the first limiting assembly (71) and the heat-conducting ceramic sheet pushing assembly (73) arranged on the sliding seat (5) on one side of the conveying chain, and the second limiting assembly (72) and the heat-conducting ceramic sheet tail limiting assembly (74) arranged on the rack (1) on one side of the second conveying chain (3), the first limiting assembly (71) and the second limiting assembly (72) are oppositely arranged, the heat-conducting ceramic sheet pushing assembly (73) and the heat-conducting ceramic sheet tail limiting assembly (74) are oppositely arranged, the heat-conducting ceramic sheet pushing assembly (73) comprises the first pushing cylinder (731) installed on the sliding seat (5) through the mounting frame, and the heat-conducting ceramic sheet pushing tongue (732) arranged on the output end of the first pushing cylinder (731), the heat-conducting ceramic sheet tail limiting assembly (74) comprises the second pushing cylinder (741) fixed on the rack (1), the clamping seat (742) fixed on the output end of the second pushing cylinder, and the two tail end limiting clamping blocks (743) fixed on the clamping seat (742), the first limiting assembly (71) comprises the first support (711) fixed on the sliding seat (5), the first longitudinal cylinder (712) fixed on the first support (711), the first connecting beam (713) fixed on the output end of the first longitudinal cylinder (712), and the first side wall limiting clamping block (714) arranged on the first connecting beam (713), the first side wall limiting clamping block (714) is located in front of the heat-conducting ceramic sheet pushing tongue (732), and the second limiting assembly (72) comprises the second support (721) fixed on the rack (1), the second longitudinal cylinder (722) fixed on the second support (721), the second connecting beam (723) fixed on the output end of the second longitudinal cylinder (722), and the second side wall limiting clamping block (724) arranged on the second connecting beam (723), the second side wall limiting clamping block (724) is located in front of the tail end limiting clamping block (743).The alignment mechanism (8) comprises a third side wall limiting clamp block (81) fixed on the first connecting beam (713), a fourth side wall limiting clamp block (82) fixed on the second connecting beam (723), and a shaping alignment assembly (83) arranged on the rack (1) on one side of the fourth side wall limiting clamp block (82). The third side wall limiting clamp block (81) and the fourth side wall limiting clamp block (82) are oppositely arranged. The shaping alignment assembly (83) comprises a third bracket (831) fixed on the rack (1), a first air cylinder (832) fixed on the third bracket (831), a fixed plate (833) fixed on the output end of the first air cylinder (832), a second air cylinder (834) fixed on the fixed plate (833), and a first clamping jaw air cylinder (835) fixed on the output end of the second air cylinder (834). Two claw fingers of the first clamping jaw air cylinder (835) are respectively provided with pull blocks (836), and the two pull blocks (836) can simultaneously pull two electrode sheets away from the finned tube body. The fixed plate (833) is fixed with a support column (837), the support column (837) is fixed with a wedge block (838), and the wedge block (838) is located between the two pull blocks (836). The wedge block (838) can push the two electrode sheets back towards the finned tube body along the two electrode sheets. ​ 2. The fin tube straightening and pre-pressing machine according to claim 1, characterized by: The pre-pressing mechanism (9) is provided with two, which are symmetrically arranged along the left and right sides of the conveying mechanism, and comprises a fourth support (91) fixed on the frame (1) or the sliding seat (5), a pre-pressing cylinder (92) fixed on the fourth support (91) in the longitudinal direction, and a pressing block (93) fixed on the output end of the pre-pressing cylinder (92), wherein the pressing block (93) is provided with a pressing groove (931), which can press the finned tube body downward and make the pressing position concave.

3. The fin tube straightening and pre-pressing machine according to claim 1, characterized by: The blanking mechanism (10) comprises a Z-axis motion module (101) fixed on the frame (1), a second clamping jaw cylinder (102) fixed on the output end of the Z-axis motion module (101), and a push rod cylinder (103) arranged on the sliding seat (5) on one side of the second clamping jaw cylinder (102), wherein two jaw fingers of the clamping jaw cylinder are respectively provided with track wheels (104), and the two track wheels (104) can respectively roll in contact with two protrusions of the finned tube body.

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