A heat exchanger fin stamping automation equipment

Abstract

The present application relates to automated equipment for stamping heat exchanger fins, comprising a feeding device, a stamping device, a receiving device, and a polishing device. The polishing device comprises a frame, a material collecting mechanism mounted on the frame, a vertical conveying mechanism, a long side polishing mechanism, a plurality of vertically arranged rails, and a support mechanism for supporting the rails. The material collecting mechanism is used to stack multiple stamped fins. The rails are used to pass through the perforations of the fins. The rails are divided from top to bottom into a feeding section, a polishing section, and a discharging section. The feeding section is used to receive the stacked fins dropped from the material collecting mechanism, and the polishing section is provided with polishing lines. The long side polishing mechanism is used to polish the long sides of the fins. The vertical conveying mechanism is used to drive the fins located on the rails to move downward so that they fall to the beginning of the receiving device. The present application has the effect of improving processing efficiency.

Description

Technical Field

[0001] The present application relates to the field of stamping equipment, and in particular to an automated stamping equipment for heat exchanger fins. Background Art

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid. It's a good thermal conductor attached to a heat-generating device. Currently, heat exchangers play a vital role in chemical, petroleum, power, food, and many other industrial processes. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, and reboilers, enjoying widespread applications.

[0003] In order to improve the heat transfer efficiency of the heat exchange tubes on the heat exchanger, fins are usually added to the surface of the heat exchange tubes. The existing fins are in the shape of strips and have multiple perforations for the heat exchange tubes to pass through. The fins increase the surface area of the heat exchange tubes, thereby achieving the purpose of improving the heat transfer efficiency.

[0004] The existing fin processing equipment is a stamping automation equipment, which includes a loading device, a stamping device and a receiving device. The loading device is used to transport the plate to the stamping device. The stamping device punches strip contours and perforates the plate, while the receiving device collects the stamped fins.

[0005] After stamping, in order to improve the installation accuracy of the fins and the matching accuracy of the fins and heat exchange tubes, some will add a polishing step, that is, stacking multiple fins, and then batch polishing the outer edges and / or perforations of the fins to remove burrs.

[0006] However, during the polishing step, the fins need to be stacked first, then transported to the tooling, clamped and positioned using the tooling, and then polished separately on multiple sides of the fins using a belt sander, resulting in low processing efficiency. Summary of the Invention

[0007] In order to improve processing efficiency, the present application provides a heat exchanger fin stamping automation equipment.

[0008] This application provides an automated heat exchanger fin stamping equipment, which adopts the following technical solutions:

[0009] A heat exchanger fin stamping automation equipment includes a feeding device, a stamping device, a receiving device and a grinding device. The grinding device is located between the stamping device and the receiving device. The grinding device includes a frame, a collecting mechanism arranged on the frame, a vertical conveying mechanism, a long side grinding mechanism, a plurality of vertically arranged rails and a supporting mechanism for supporting the rails. The collecting mechanism is used to stack a plurality of stamped fins, and the rails are used to pass through the through holes of the fins. The rails are divided into a feeding section, a grinding section and a discharging section from top to bottom. The feeding section is used to receive the stacked fins dropped from the collecting mechanism, the grinding section is provided with grinding lines, and the discharging section is used to allow the fins to move downward; the long side grinding mechanism is used to grind the long sides of the fins; the vertical conveying mechanism is used to drive the fins located on the rails to move downward so as to fall to the starting end of the receiving device.

[0010] By adopting the above technical solution, the collecting mechanism is first used to collect and stack the fins in batches, and then the stacked fins are dropped to the feeding section of the rail rod. The cooperation between the rail rod and the perforation is used to complete the positioning of the fins. Then the vertical conveying mechanism is started to drive the stacked fins to move down along the rail rod. During this period, when the fins pass through the grinding section, the grinding lines on the rail rod grind the perforations of the fins. At the same time, the long side grinding mechanism is started to grind the two long sides of the fins, that is, the fins are polished while moving downward, until the vertical conveying mechanism moves the fins down to the discharging section and removes the fins from the rail rod so that they fall to the receiving device for collection.

[0011] That is, the grinding step is added to the processing flow of the fins to save the time of transportation and stacking, and the rail rod is used for positioning, and the rail rod and the long side grinding mechanism are ground at the same time to complete the perforation of the fins and the simultaneous grinding of the sides, further shortening the grinding time and thereby improving the overall processing efficiency.

[0012] Optionally, the collecting mechanism includes a front baffle, a bottom baffle, a rear baffle, a side baffle, a first linear drive assembly and a second linear drive assembly, wherein the front baffle is fixed on the frame, the side baffles are located on both horizontal sides of the front baffle, the first linear drive assembly is used to drive the side baffles to move in a direction close to or away from the front baffle, the bottom baffle is located below the front baffle, the rear baffle is fixed on the bottom baffle and the rear baffle is arranged opposite to the front baffle, the second linear drive assembly is used to drive the bottom baffle to move in a direction close to or away from the front baffle, the front baffle, side baffles, bottom baffle and rear baffle together form a accommodating cavity with an upper opening, and the upper opening of the accommodating cavity is used for allowing multiple fins formed by stamping to enter the accommodating cavity.

[0013] By adopting the above technical solution, the stamped fins will fall into the accommodating cavity from the upper opening of the accommodating cavity in sequence. After collecting multiple fins, under the action of the first linear drive component and the second linear drive component, the side baffles and the rear baffle will move toward the middle of the accommodating cavity to abut the side edges of the fins and align the side edges of the stacked fins. After the alignment is completed, the two side baffles continue to clamp the fins, and the rear baffle and the bottom baffle are withdrawn away, so that the fins are in a suspended state. Then the side baffles release the clamping, and the stacked fins fall to the feeding section of the rail rod under gravity, and the perforations on them are sleeved on the rail rod, thus completing the feeding and positioning.

[0014] In this way, it is convenient to accurately load the rail rod, so as to improve the subsequent grinding accuracy.

[0015] Optionally, the support mechanism is provided in two pieces and corresponds to the feed section and the discharge section of the rail rod respectively. The support mechanism includes two support assemblies respectively located on both sides of the rail rod horizontally. The support assembly includes a support bar and a third linear drive structure for driving the support bar to move horizontally toward or away from the rail rod. Grooves are provided on the surfaces of the feed section and the discharge section, and the support bar is used to cooperate with the grooves of each rail rod.

[0016] By adopting the above technical solution, during normal operation or grinding processing, the two supporting mechanisms support the upper and lower ends of the rail rod so that the rail rod is in a stable suspended state, so as to cope with the reaction force of the fins on the rail rod caused by the grinding processing, that is, the rail rod maintains a stable position, which can improve the grinding effect.

[0017] When the stacked fins need to be placed from the collecting mechanism into the feeding section of the rail rod, the two support assemblies located below still maintain a supporting state. Specifically, the support bars are driven by the third linear drive structure and inserted into the groove, that is, the two support bars stably clamp the rail rod at the same time to ensure the stable position of the rail rod, while the support assembly located above releases the supporting state, that is, the support bars are driven by the third linear drive structure and move away from the rail rod. In this way, there are no interfering objects near the feeding section of the rail rod, and the fins can be mounted on the feeding section of the fins without interference to complete the feeding. After the feeding is completed, the support assembly located above resumes the supporting state.

[0018] When the polished fins need to be released from the rail and moved to the receiving device, the two support components located above remain in the supporting state to ensure the stable position of the rail, and then the support component located below releases the supporting state. In this way, there are no interfering objects near the discharge section of the rail, and the fins can be discharged from the discharge section of the rail without interference. After the discharge is completed, the support component located below resumes the supporting state.

[0019] In this way, the feeding and discharging of the rail rod itself is ensured, and the rail rod is kept in a stable position to improve the grinding effect. Secondly, through the form of a double support assembly, the stability of the rail rod can be greatly improved.

[0020] Optionally, the vertical transmission mechanism includes two vertically arranged lifting frames, the two lifting frames are respectively located on one side of the rail rod, and there are two first slides sliding vertically on the lifting frames. The lifting frames are provided with first lifting components for driving the first slides to move up and down respectively, and the first slides are horizontally hingedly connected to an abutment plate. The first slide is also provided with a first rotation drive component for driving the abutment plate to swing back and forth horizontally, and the abutment plate is used to abut against the upper surface or lower surface of the stacked fins.

[0021] By adopting the above technical solution, by setting two upper and lower abutment plates, it is possible to abut against the upper and lower sides of the stacked fins at the same time, and then cooperate with the first lifting component to stably drive the fins downward to complete the feeding, grinding and discharging actions.

[0022] The rotatability of the abutment plate is to avoid interference with the fins when the abutment plate moves up and down and resets, and to facilitate the release of the abutment on the lower surface of the stacked fins so that the stacked fins can fall to the receiving device without interference.

[0023] Optionally, the long side grinding mechanism is provided in two and arranged up and down, the long side grinding mechanism includes two grinding belts and a first driving assembly for driving the grinding belts to move respectively, the two grinding belts are located on the horizontal sides of the rail rod, the grinding belts are tilted in the vertical plane, the inclination directions of the two grinding belts are opposite, and the inclination directions of the two grinding belts located on the same side of the two long side grinding mechanisms are opposite.

[0024] By adopting the above technical solution, the arrangement of two grinding belts can grind the two long sides of the fin simultaneously, while the two long side grinding mechanisms can achieve coarse grinding and fine grinding respectively to improve the grinding effect.

[0025] The inclined setting of the grinding belt, on the one hand, cooperates with the movement of the vertical conveying mechanism to achieve complete grinding of the long side of the fin; on the other hand, the force direction of each grinding belt is different and the grinding path is different, which can reduce the burr residue caused by a single grinding path, thereby improving the comprehensiveness and effect of grinding.

[0026] Optionally, the moving direction of the portion of the grinding belt of the upper long side grinding mechanism facing the rail rod is inclined downward, and the moving direction of the portion of the grinding belt of the lower long side grinding mechanism facing the rail rod is inclined upward.

[0027] By adopting the above technical solution, the force exerted on the fins by the long side grinding mechanism located at the top is inclined downward, and the component of this force is vertically downward and applied to the fins, thereby accelerating the speed at which the fins enter the grinding section from the feeding section of the rail rod. Secondly, the force exerted on the fins by the long side grinding mechanism located at the bottom is inclined upward, and the component of this force is vertically upward and applied to the fins, thereby reducing the moving speed of the fins on the grinding section of the rail rod, thereby extending the grinding time and improving the grinding effect.

[0028] Optionally, the frame is provided with a second drive assembly, which is used to drive the rail rod to rotate; the second drive assembly includes a fourth linear reciprocating structure provided on the frame, and the fourth linear reciprocating structure is used to drive the third linear drive structure to move back and forth along the arrangement direction of each rail rod, and the support bar is provided with a rack, and the rail rod is provided with a gear located in the groove, the rack and the gear are meshed with each other, and the movement directions of the two relative support bars are opposite.

[0029] By adopting the above technical solution, when the rail rod is used to grind the perforations of the fin, the vertical transmission mechanism is used to drive the fin to move downward relative to the rail rod. This is the first grinding method. When the fourth linear reciprocating structure drives the support bar to move back and forth, the two relative support bars move toward or away from each other, and the meshing of the rack and the gear is used to drive the rail rod to rotate around its own axis to grind the inner wall of the perforation. This is the second grinding method. The combination of the two grinding methods greatly improves the grinding uniformity and grinding efficiency of the perforation.

[0030] Optionally, the frame is provided with a horizontally arranged support plate and a second rotation drive structure, the support plate is rotationally connected to the frame, the rotation plane of the support plate is a vertical plane, the third linear drive structure and the fourth linear drive structure are both installed on the support plate, and the second drive rotation structure is used to drive the support plate to move along a circular trajectory in the vertical plane.

[0031] By adopting the above technical solution, by starting the second rotating drive structure, the support plate is driven to move along the circular trajectory in the vertical plane. During this period, the support plate remains in a horizontal state, thereby driving the rail rod to move along the vertical circular trajectory. Since the fins are limited by the abutment plate of the vertical transmission mechanism and have no freedom to move up and down, the displacement of the movement of the circular trajectory is split, and it can be obtained that the rail rod will reciprocate up and down relative to the fins. This is the third grinding method, and the rail rod will drive the fins to move horizontally left and right to increase the movement frequency between the long side of the fin and the grinding belt. This is the fourth grinding method, that is, the effects of the four grinding methods are superimposed to greatly improve the grinding efficiency and grinding effect of the long side and perforation of the fin.

[0032] Optionally, the two opposite groove walls of the groove are inclined surfaces, and the distance between the two opposite groove walls gradually increases in the direction away from the groove bottom. The edges of the support bar are provided with guide surfaces that are adapted to the inclined surfaces of the groove.

[0033] By adopting the above technical solution, the guide surface and the inclined surface cooperate to improve the ease of docking between the support bar and the groove.

[0034] Optionally, the material receiving device includes a horizontal conveyor belt, a material receiving box and a fifth linear reciprocating mechanism, the starting end of the horizontal conveyor belt is located directly below the rail rod, the material receiving box is located directly below the terminal end of the horizontal conveyor belt, and the material receiving box is provided with a plurality of spaced partitions, the spacing between adjacent partitions is equal to the width of the fin, and the fifth linear reciprocating mechanism is used to drive the material receiving box to move back and forth in a straight line.

[0035] By adopting the above technical solution, when the stacked fins fall from the discharge section of the rail rod to the horizontal conveyor belt, the horizontal conveyor belt transports the fins to the receiving box, and the fins fall between the two partitions due to gravity. Then the fifth linear reciprocating mechanism is started to move the receiving box a certain distance, so that the fins on the horizontal conveyor belt can be between another set of partitions, thereby realizing the partitioned stacking and neat collection of the fins.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. The coordination of the vertical conveying mechanism, rail rods, and long side grinding mechanism not only saves the time of transportation and stacking, but also completes positioning and simultaneous grinding, so as to complete the fin perforation and side grinding at the same time, further shortening the grinding time and thus improving the overall processing efficiency;

[0038] 2. By setting up a support component that can support and release the support, it not only ensures the feeding and discharging of the rail rod itself, but also ensures that the rail rod is in a stable position to improve the grinding effect;

[0039] 3. By setting the grinding direction and position of the long side grinding mechanism, the horizontal and vertical components of grinding force are utilized to improve the grinding stability and extend the grinding time, thereby greatly improving the grinding effect;

[0040] 4. The fourth linear reciprocating structure drives the support bars to reciprocate, and the two opposing support bars move toward or away from each other. The meshing of the rack and gear drives the rail rod to rotate around its own axis to grind the inner wall of the perforation, thereby greatly improving the grinding uniformity and grinding efficiency of the perforation.

[0041] 5. By setting the vertical circular trajectory movement mode of the rail rod, the rail rod is made to reciprocate up and down relative to the fin, and the rail rod drives the fin to move horizontally left and right, so as to increase the movement frequency between the long side of the fin and the grinding belt. Multiple grinding methods are superimposed to greatly improve the grinding efficiency and grinding effect of the long side and perforation of the fin. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0043] Figure 2 It is a structural schematic diagram of the grinding device and the material collecting device of Example 1.

[0044] Figure 3 It is a schematic structural diagram of the grinding device of Example 1.

[0045] Figure 4 It is a structural schematic diagram of the gathering mechanism of Example 1.

[0046] Figure 5 It is a structural schematic diagram of the support mechanism of Example 1.

[0047] Figure 6 This is a schematic diagram of Example 1, which is used to illustrate the cooperation between the support bar and the groove of the rail.

[0048] Figure 7 It is a side view of the vertical conveying mechanism of Example 1.

[0049] Figure 8 It is a structural diagram of the vertical conveying mechanism of Example 1.

[0050] Figure 9 Schematic diagram of the structure of the long side grinding mechanism of Example 1.

[0051] Figure 10 It is a structural diagram of the support mechanism of Example 2.

[0052] Figure 11 yes Figure 10 A partial enlarged view of point A in the middle.

[0053] Figure 12 It is a structural diagram of the support mechanism of Example 3.

[0054] Figure 13 It is the vertical circumferential trajectory line used to reflect the support plate in Example 3.

[0055] Explanation of the accompanying symbols: 1. collecting mechanism; 2. supporting mechanism; 3. vertical conveying mechanism; 4. long side grinding mechanism; 5. rail rod; 10. feeding device; 100. fin; 101. unwinding rack; 102. uncoiler; 103. perforation; 11. front baffle; 12. side baffle; 13. rear baffle; 14. bottom baffle; 15. second linear drive assembly; 16. first linear drive assembly; 20. punching device; 21. supporting assembly; 22. supporting plate; 23. third linear drive structure; 24. supporting bar; 241. guide surface; 30. grinding device; 301. first frame; 302. second frame; 31. guide Rod; 32. First slide; 33. Abutment plate; 34. Screw rod; 35. First servo motor; 36. First rotation drive assembly; 40. Material receiving device; 401. Horizontal conveyor belt; 402. Material receiving box; 403. Fifth linear reciprocating mechanism; 404. Partition; 41. Grinding belt; 421. Active roller; 422. Driven roller; 423. Third servo motor; 424. Bracket; 51. Feed section; 52. Grinding section; 53. Discharge section; 54. Groove; 61. Second slide; 62. Fourth linear reciprocating structure; 63. Rack; 64. Gear; 65. Rotating shaft; 66. Swing arm; 67. Second rotation drive structure. DETAILED DESCRIPTION

[0056] The following is combined with Figure 1-13 This application is described in further detail.

[0057] Example 1 of the present application discloses an automated equipment for stamping fins of a heat exchanger.

[0058] Reference Figure 1 The heat exchanger fin stamping automation equipment includes a loading device 10, a stamping device 20, a grinding device 30 and a receiving device 40. The loading device 10 is used to convey the plate to the stamping device 20. The loading device 10 includes a discharge rack 101 and a uncoiler 102. The discharge rack 101 is used to discharge the plate. The uncoiler 102 is used to flatten the plate discharged by the discharge rack 101 and convey it to the stamping device 20. The stamping device 20 punches the flat plate to make a fin 100 with a perforation 103. The grinding device 30 grinds the long side and the perforation 103 of the fin 100. Finally, the polished fin 100 is collected by the receiving device 40.

[0059] like Figure 2 、 Figure 3As shown, the grinding device 30 includes a frame, a collecting mechanism 1 arranged on the frame, a vertical conveying mechanism 3, a long side grinding mechanism 4, a plurality of vertically arranged rails 5 and a support mechanism 2 for supporting the rails 5 in a suspended state, wherein the collecting mechanism 1 is used to stack a plurality of stamped fins 100, the rails 5 are arranged in a one-to-one correspondence with the through holes 103 of the fins 100, and the rails 5 are divided into a feeding section 51, a grinding section 52 and a discharging section 53 from top to bottom, wherein the feeding section 51 is used to receive the stacked fins 100 falling from the collecting mechanism 1, and the grinding section 52 is provided with a grinding pattern (not shown in the figure), and the vertical conveying mechanism 3 is used to drive the fins 100 located on the rail 5 to move downward along the rail 5 to the discharging section 53 of the rail 5.

[0060] The collecting mechanism 1 drops the stacked fins 100 to the feeding section 51 of the rail rod 5, and uses the cooperation between the rail rod 5 and the perforation 103 to complete the positioning of the fins 100, and then the vertical conveying mechanism 3 is started to drive the stacked fins 100 to move down along the rail rod 5. During this period, when the fins 100 pass through the grinding section 52, the relative movement of the fins 100 and the rail rod 5 is used to grind the perforations 103 of the fins 100 with the grinding lines on the rail rod 5. At the same time, the two long side grinding mechanisms 4 are started to grind the two long sides of the fins 100, that is, the fins 100 are ground while moving downward, until the vertical conveying mechanism 3 moves the fins 100 down to the discharging section 53 of the rail rod 5, and moves the fins 100 out of the rail rod 5 to drop them to the receiving device 40 for collection.

[0061] In this way, the grinding step is added to the processing flow of the fin 100 to save the time of transporting the fin 100 and stacking the fin 100. Secondly, the rail rod 5 and the long side grinding mechanism 4 are ground at the same time to complete the simultaneous grinding of the perforation 103 and the side of the fin 100, further shortening the grinding time and thereby improving the overall processing efficiency.

[0062] If the width of the plate is equal to the length of the fin 100, the punching device 20 does not need to punch the short side of the fin 100. If the width of the plate is greater than the length of the fin 100, the punching device 20 needs to punch the short side of the fin 100, that is, there are burrs on the short side of the fin 100. In this case, the short side of the fin 100 can be polished at the collecting device 40. This is mainly because the short side of the fin 100 is small in size and is not a major fitting position, so manual sandpaper can be used for rough grinding.

[0063] like Figure 3 、 Figure 4As shown, the frame includes two first frames 301 and two second frames 302. The first frames 301 and the second frames 302 are both vertical. The conveying direction of the plate is regarded as the front and rear direction of the rail 5. The two first frames 301 are respectively located on the front and rear sides of the rail 5, and the two second frames 302 are respectively located on the left and right sides of the rail 5.

[0064] like Figure 4 As shown, the material collection mechanism 1 is located directly above the rail rod 5. The material collection mechanism 1 includes a front baffle 11, a bottom baffle 14, a rear baffle 13, a side baffle 12, a first linear drive component 16 and a second linear drive component 15. The front baffle 11, the side baffle 12, the bottom baffle 14 and the rear baffle 13 together form a accommodating cavity with an upper opening.

[0065] The front baffle 11 is fixedly connected to the first frame 301 located on the front side. The first linear drive component 16 and the second linear drive component 15 can be linear reciprocating drive structures such as a cylinder, an oil cylinder, and an electric push rod. The two first linear drive components 16 are installed on the two second frames 302 respectively. The driving end of the first linear drive component 16 is fixedly connected to the side baffle 12. The first linear drive component 16 is used to drive the side baffle 12 to move in a direction close to or away from the front baffle 11.

[0066] The second linear drive component 15 is installed on the first frame 301 located on the rear side, the bottom baffle 14 is located below the front baffle 11, the rear baffle 13 is fixed on the bottom baffle 14 and the rear baffle 13 is arranged opposite to the front baffle 11, and the driving end of the second linear drive component 15 is fixedly connected to the bottom baffle 14. The second linear drive component 15 is used to drive the bottom baffle 14 to move in a direction close to or away from the front baffle 11.

[0067] After the punching device 20 punches and forms the fins 100, it passes through the upper opening of the accommodating cavity in turn and falls into the accommodating cavity. After the accommodating cavity collects multiple fins 100, under the action of the first linear drive component 16 and the second linear drive component 15, the side baffles 12 and the rear baffle 13 move toward the middle of the accommodating cavity to abut the four side edges of the fins 100 and align the side edges of the stacked fins 100. After the alignment is completed, the two side baffles 12 continue to clamp the fins 100. Driven by the second linear drive component 15, the rear baffle 13 and the bottom baffle 14 are withdrawn, so that the fins 100 are in a clamped and suspended state. Then the side baffles 12 release the clamping, and the stacked fins 100 fall to the feeding section 51 of the rail rod 5 under gravity. The through holes 103 thereon are sleeved on the rail rod 5, thus completing the feeding and positioning.

[0068] like Figure 5As shown, two support mechanisms 2 are provided, and the two support mechanisms 2 are respectively provided corresponding to the feed section 51 and the discharge section 53 of the rail 5, that is, the support positions of the two support mechanisms 2 are respectively the feed end and the discharge section 53 of the rail 5. The support mechanism 2 includes two support assemblies 21, and the two support assemblies 21 are respectively located on both horizontal sides of the rail 5.

[0069] like Figure 5 、 Figure 6 As shown, the support assembly 21 includes a support bar 24 and a third linear drive structure 23, wherein a support plate 22 is fixed on the first frame 301, and the third linear drive structure 23 is installed on the support plate 22. The third linear drive structure 23 can be a linear reciprocating drive structure such as a cylinder, an oil cylinder, or an electric push rod. The support bar 24 is horizontally arranged, and the support bar 24 is fixed to the driving end of the third linear drive structure 23. The third linear drive structure 23 can drive the support bar 24 to move horizontally toward or away from the rail rod 5. A guide surface 241 is provided at the edge of the support bar 24 facing the rail rod 5. The surfaces of the rail rod 5 located in the feeding section 51 and the discharging section 53 are both provided with an annular groove 54. The two opposite groove walls of the groove 54 are inclined surfaces, and the distance between the two opposite groove walls gradually increases along the direction away from the bottom of the groove 54.

[0070] The support bars 24 are driven by the third linear drive structure 23 and are simultaneously inserted into the grooves 54 at the same height, that is, the two support bars 24 stably clamp the rail rod 5 at the same time to ensure the stable position of the rail rod 5, and the two support mechanisms 2 both support the upper and lower ends of the rail rod 5, further making the rail rod 5 in a stably suspended state.

[0071] like Figure 7 、 Figure 8 As shown, the vertical transmission mechanism 3 includes two vertically arranged lifting frames, which can be the above-mentioned second frame 302 or a frame fixed to the second frame 302. In this embodiment, the lifting frame is the above-mentioned second frame 302, and the second frame 302 is provided with two vertically arranged guide rods 31. The guide rods 31 are provided with first slides 32. The first slides 32 are slidably arranged along the length direction of the guide rods 31, and the two first slides 32 are horizontally staggered. The second frame 302 is also provided with one-to-one corresponding first slides 32. A first lifting component is set, and the first lifting component is used to drive the first slide 32 to move up and down. The first lifting component can be a linear reciprocating drive structure such as a cylinder, an oil cylinder, or an electric push rod. In this embodiment, the first lifting component includes a screw rod 34 and a first servo motor 35. The first servo motor 35 is installed on the second frame 302. One end of the screw rod 34 is fixed to the output end of the first servo motor 35. The screw rod 34 is threadedly connected to the first slide 32. The first servo motor 35 drives the first slide 32 to move through the screw rod 34.

[0072] A horizontally arranged abutment plate 33 is provided on the first slide 32. Specifically, one end of the abutment plate 33 is hingedly connected to the first slide 32. The first slide 32 is also provided with a first rotation drive component 36 for driving the abutment plate 33 to swing horizontally back and forth. The first rotation drive component 36 is a second servo motor. The main body of the second servo motor is fixedly connected to the first slide 32, and the output end of the second servo motor is fixedly connected to the hinged end of the abutment plate 33.

[0073] Before the fin 100 enters the feeding section 51 of the rail rod 5, the two support assemblies 21 located below still maintain the supporting state (the two support bars 24 stably clamp the rail rod 5 at the same time), while the support assembly 21 located above releases the supporting state (the support bar 24 is driven away from the rail rod 5 by the third linear drive structure 23), so that there is no interfering object near the feeding section 51 of the rail rod 5, and the fin 100 can be installed in the feeding section 51 of the fin 100 without interference to complete the feeding. In addition, one of the abutment plates 33 is pre-positioned at the feeding section 51 to support the fins 100, that is, the surface of the abutment plate 33 abuts against the lower surface of the fins 100. When all the fins 100 enter the feeding section 51, the support assembly 21 located above resumes the supporting state, and then the other abutment plate 33 is driven by the second servo motor to swing to the upper surface of the stacked fins 100. In this way, the two abutment plates 33 clamp the stacked fins 100 therein. Driven by the first lifting assembly, the two first slides 32 move downward together, thereby driving the stacked fins 100 to move downward to enter the grinding section 52 and complete the grinding of the perforations 103 and the long sides of the fins 100.

[0074] When the first slide 32 and the abutment plate 33 move downward, the stacked fins 100 are moved down to the discharge section 53 of the rail rod 5, ready to be discharged to the receiving device 40. At this time, the two support assemblies 21 located above still maintain the supporting state to ensure that the position of the rail rod 5 is stable, and then the support assembly 21 located below releases the supporting state. In this way, there is no interfering object near the discharge section 53 of the rail rod 5, and the abutment plate 33 can discharge the fins 100 from the discharge section 53 of the rail rod 5 without interference. At the same time, the abutment plate 33 located below is driven by the second servo motor to swing, and the abutment plate 33 is misaligned with the fin 100. At this time, only the abutment plate 33 located above applies a downward force to the fin 100 to ensure that the fin 100 can enter the starting end of the receiving device 40 without interference. After all the fins 100 are separated from the rail rod 5, the support assembly 21 located below resumes the supporting state.

[0075] like Figure 9As shown, there are two long side grinding mechanisms 4, which are arranged up and down, that is, when the fin 100 moves downward on the rail rod 5, it is polished by the two long side grinding mechanisms 4 in sequence to achieve rough grinding and fine grinding.

[0076] The long side grinding mechanism 4 includes two grinding belts 41 and a first driving assembly for driving the grinding belts 41 to move respectively. The two first driving assemblies are respectively located on the horizontal sides of the rail rod 5. The first driving assembly includes an active roller 421, a driven roller 422 and a third servo motor 423. The active roller 421 and the driven roller 422 are respectively connected to the first frame 301 through a bracket 424. The third servo motor 423 is installed on the bracket 424. The third servo motor 423 drives the active roller 421 to rotate.

[0077] The grinding belt 41 is wound around the active roller 421 and the driven roller 422 . The grinding belt 41 is tilted in the vertical plane. The tilt directions of the two grinding belts 41 are opposite, that is, the two grinding belts 41 are arranged in an X shape.

[0078] The two grinding belts 41 of the two long side grinding mechanisms 4 on the same side are tilted in opposite directions, and the direction of movement of the grinding belt 41 of the upper long side grinding mechanism 4 facing the rail rod 5 is tilted downward, and the direction of movement of the grinding belt 41 of the lower long side grinding mechanism 4 facing the rail rod 5 is tilted upward (direction see Figure 9 direction of the arrow).

[0079] In conjunction with the movement of the vertical conveying mechanism 3, the two grinding belts 41 can grind the two long sides of the fin 100 at the same time. Moreover, the grinding directions of the grinding belts 41 are different, and grinding can be performed at multiple angles to reduce the burrs remaining due to a single grinding path, thereby improving the comprehensiveness and effect of grinding.

[0080] like Figure 2 As shown, the material receiving device 40 includes a horizontal conveyor belt 401, a material receiving box 402 and a fifth linear reciprocating mechanism 403. The conveying direction of the horizontal conveyor belt 401 is parallel to the length direction of the stacked fins 100. The starting end of the horizontal conveyor belt 401 is located directly below the rail rod 5. There is a vertical gap between the surface of the horizontal conveyor belt 401 and the lower end of the rail rod 5. The gap is greater than the thickness of the stacked fins 100 to facilitate the stacked fins 100 to fall onto the horizontal conveyor belt 401.

[0081] The material receiving box 402 is located directly below the terminal end of the horizontal conveyor belt 401. A plurality of spaced partitions 404 are provided on the material receiving box 402. The spacing between adjacent partitions 404 is equal to the width of the fin 100. A accommodating cavity is formed between adjacent partitions 404. The fifth linear reciprocating mechanism 403 is used to drive the material receiving box 402 to move back and forth in a straight line. The moving direction of the material receiving box 402 is horizontally perpendicular to the conveying direction of the horizontal conveyor belt 401. The fifth linear reciprocating mechanism 403 can be a linear reciprocating drive structure such as a cylinder, an oil cylinder, or an electric push rod.

[0082] When the stacked fins 100 fall from the discharge section 53 of the rail 5 onto the horizontal conveyor belt 401, the horizontal conveyor belt 401 transports the fins 100 to the receiving box 402, and the fins 100 fall into the accommodating cavity between the two partitions 404 under gravity for collection, and then the fifth linear reciprocating mechanism 403 is started to move the receiving box 402 a distance so that the new accommodating cavity is aligned with the end of the horizontal conveyor belt 401, so as to receive a new group of fins 100, thereby realizing the partitioned stacking and neat collection of the fins 100.

[0083] Example 2

[0084] The difference between Example 2 and Example 1 is that Figure 10 、 Figure 11 As shown, the first frame 301 is provided with a second driving assembly, and the second driving assembly is used to drive the rail rod 5 to rotate.

[0085] In Example 1, the vertical transmission mechanism 3 is used to drive the fin 100 to move downward relative to the rail rod 5 to grind the perforation 103. This is the first grinding method. On this basis, Example 2 causes the rail rod 5 to rotate around its own axis to rotate and grind the inner wall of the perforation 103. This is the second grinding method. The two grinding methods are combined to greatly improve the grinding uniformity and grinding efficiency of the perforation 103.

[0086] Specifically, the second drive assembly includes a fourth linear reciprocating structure 62 provided on the frame, and the fourth linear reciprocating structure 62 is installed on the support plate 22. The fourth linear reciprocating structure 62 can be a linear reciprocating drive structure such as a cylinder, an oil cylinder, or an electric push rod. The third linear drive structure 23 is fixed with a second slide 61, and the second slide 61 is slidingly connected to the support plate 22. The fourth linear reciprocating structure 62 is used to drive the third linear drive structure 23 to move back and forth along the arrangement direction of each rail rod 5; a rack 63 is provided on the side of the support bar 24 facing the rail rod 5, and a gear 64 is provided at the bottom of the groove 54. The gear 64 is coaxially arranged with the rail rod 5, and the rack 63 and the gear 64 are meshed.

[0087] When the support bar 24 is inserted into the groove 54 and the rack 63 and the gear 64 cooperate, the fourth linear reciprocating structure 62 drives the support bar 24 to move back and forth, so that the two support bars 24 relative to each other at the same height move toward or away from each other, and utilizes the engagement of the rack 63 and the gear 64 to drive the rail rod 5 to rotate around its own axis to grind the inner wall of the through hole 103.

[0088] Example 3

[0089] The difference between Example 3 and Example 2 is that Figure 12 、 Figure 13 As shown, the first frame 301 is horizontally penetrated by a rotating shaft 65, which is parallel to the driving direction of the third linear drive structure 23. The rotating shaft 65 is rotatably connected to the first frame 301, and a swing arm 66 is vertically fixed to one end of the rotating shaft 65. The other end of the swing arm 66 is hingedly connected to the support plate 22, so that the support plate 22 can move along a vertical circular trajectory around the rotating shaft 65. The first frame 301 is also provided with a second rotating drive structure 67, and the second rotating drive structure 67 is a fourth servo motor. The fourth servo motor is used to drive the rotating shaft 65 to rotate.

[0090] Example 3 adds two new grinding methods on the basis of the two grinding methods of Example 2. Specifically, the support plate 22 moves along a circular trajectory in the vertical plane. During this period, the support plate 22 remains in a horizontal state, thereby driving the rail rod 5 to move along the vertical circular trajectory. Since the fin 100 is limited by the abutment plate 33 of the vertical transmission mechanism 3 and has no freedom to move up and down, the rail rod 5 will perform high-frequency reciprocating motion up and down relative to the fin 100. This is the third grinding method, and the rail rod 5 will drive the fin 100 to move horizontally left and right to increase the movement frequency between the long side of the fin 100 and the grinding belt 41. This is the fourth grinding method, that is, the effects of the four grinding methods are superimposed to greatly improve the grinding efficiency and grinding effect of the long side of the fin 100 and the perforation 103.

[0091] In addition, under certain working conditions, the third linear drive structure 23 can be used to drive the support bars 24 on both sides to move a short distance in the same direction, so that the entire rail rod 5 can perform a small reciprocating motion back and forth to increase the grinding amount of other parts and improve the uniformity of grinding.

[0092] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A heat exchanger fin stamping automation device, comprising a feeding device (10), a stamping device (20) and a receiving device (40), characterized in that: The machine also includes a grinding device (30), which is located between the stamping device (20) and the receiving device (40). The grinding device (30) includes a frame, a material collecting mechanism (1) arranged on the frame, a vertical conveying mechanism (3), a long side grinding mechanism (4), a plurality of vertically arranged rails (5), and a supporting mechanism (2) for supporting the rails (5). The material collecting mechanism (1) is used to stack a plurality of stamped fins (100), the rails (5) are used to pass through the through holes (103) of the fins (100), and the rails (5) are used to pass through the through holes (103) of the fins (100). From top to bottom, it is divided into a feeding section (51), a grinding section (52) and a discharging section (53), wherein the feeding section (51) is used to receive the stacked fins (100) dropped from the collecting mechanism (1), the grinding section (52) is provided with grinding lines, and the discharging section (53) is used to allow the fins (100) to move downward; the long side grinding mechanism (4) is used to grind the long side of the fins (100); and the vertical conveying mechanism (3) is used to drive the fins (100) located on the rail (5) to move downward so as to drop to the starting end of the receiving device (40).

2. The heat exchanger fin stamping automation equipment according to claim 1, characterized in that: The collecting mechanism (1) comprises a front baffle (11), a bottom baffle (14), a rear baffle (13), a side baffle (12), a first linear drive assembly (16) and a second linear drive assembly (15), wherein the front baffle (11) is fixed on the frame, the side baffles (12) are located on both horizontal sides of the front baffle (11), the first linear drive assembly (16) is used to drive the side baffles (12) to move in a direction close to or away from the front baffle (11), and the bottom baffle (14) is located on the front baffle ( 11), the rear baffle (13) is fixed on the bottom baffle (14) and the rear baffle (13) is arranged opposite to the front baffle (11), the second linear drive assembly (15) is used to drive the bottom baffle (14) to move in a direction close to or away from the front baffle (11), and the front baffle (11), the side baffles (12), the bottom baffle (14) and the rear baffle (13) are surrounded to form a receiving cavity with an upper opening, and the upper opening of the receiving cavity is used to allow a plurality of fins (100) formed by stamping to enter the receiving cavity.

3. The heat exchanger fin stamping automation equipment according to claim 1, characterized in that: The support mechanism (2) is provided with two sections and respectively corresponds to the feed section (51) and the discharge section (53) of the rail rod (5). The support mechanism (2) includes two support assemblies (21) respectively located on both sides of the rail rod (5). The support assembly (21) includes a support bar (24) and a third linear drive structure (23) for driving the support bar (24) to move horizontally toward or away from the rail rod (5). The surfaces of the feed section (51) and the discharge section (53) are both provided with grooves (54). The support bar (24) is used to cooperate with the grooves (54) of each rail rod (5).

4. The heat exchanger fin stamping automation equipment according to claim 3, characterized in that: The vertical conveying mechanism (3) includes two vertically arranged lifting frames, and the two lifting frames are respectively located on one side of the rail rod (5). There are two first slides (32) sliding vertically on the lifting frames. The lifting frames are provided with first lifting components for driving the first slides (32) to move up and down respectively. The first slides (32) are horizontally hingedly connected to the abutment plates (33). The first slides (32) are also provided with a first rotation driving component (36) for driving the abutment plates (33) to swing back and forth horizontally. The abutment plates (33) are used to abut against the upper surface or lower surface of the stacked fins (100).

5. The heat exchanger fin stamping automation equipment according to claim 3 or 4, characterized in that: The long side grinding mechanisms (4) are provided in two and arranged in an upper and lower arrangement. The long side grinding mechanisms (4) include two grinding belts (41) and a first driving assembly for respectively driving the grinding belts (41) to move. The two grinding belts (41) are located on both horizontal sides of the rail rod (5). The grinding belts (41) are tilted in a vertical plane. The tilt directions of the two grinding belts (41) are opposite, and the tilt directions of the two grinding belts (41) located on the same side of the two long side grinding mechanisms (4) are opposite.

6. The heat exchanger fin stamping automation equipment according to claim 5, characterized in that: The moving direction of the portion of the grinding belt (41) of the upper long side grinding mechanism (4) facing the rail rod (5) is inclined downward, and the moving direction of the portion of the grinding belt (41) of the lower long side grinding mechanism (4) facing the rail rod (5) is inclined upward.

7. The heat exchanger fin stamping automation equipment according to claim 6, characterized in that: The frame is provided with a second drive assembly, and the second drive assembly is used to drive the rail rod (5) to rotate; the second drive assembly includes a fourth linear reciprocating structure (62) provided on the frame, and the fourth linear reciprocating structure (62) is used to drive the third linear drive structure (23) to move back and forth along the arrangement direction of each rail rod (5), the support bar (24) is provided with a rack (63), and the rail rod (5) is provided with a gear (64) located in the groove (54), the rack (63) and the gear (64) are engaged with each other, and the movement directions of the two opposing support bars (24) are opposite.

8. The heat exchanger fin stamping automation equipment according to claim 7, characterized in that: The frame is provided with a horizontally arranged support plate (22) and a second rotation drive structure (67), the support plate (22) is rotationally connected to the frame, the rotation plane of the support plate (22) is a vertical plane, the third linear drive structure (23) and the fourth linear reciprocating structure (62) are both installed on the support plate (22), and the second rotation drive structure (67) is used to drive the support plate (22) to move along a circular trajectory in the vertical plane.

9. The heat exchanger fin stamping automation equipment according to claim 7, characterized in that: The two opposite groove walls of the groove (54) are inclined surfaces, and the distance between the two opposite groove walls gradually increases in a direction away from the groove bottom of the groove (54). The edge of the support bar (24) is provided with a guide surface (241) adapted to the inclined surface of the groove (54).

10. The heat exchanger fin stamping automation equipment according to claim 1, characterized in that: The material receiving device (40) includes a horizontal conveyor belt (401), a material receiving box (402) and a fifth linear reciprocating mechanism (403), wherein the starting end of the horizontal conveyor belt (401) is located directly below the rail rod (5), and the material receiving box (402) is located directly below the terminal end of the horizontal conveyor belt (401). The material receiving box (402) is provided with a plurality of spaced partitions (404), and the spacing between adjacent partitions (404) is equal to the width of the fin (100). The fifth linear reciprocating mechanism (403) is used to drive the material receiving box (402) to move back and forth in a linear manner.

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