A fast-type heat exchanger bending machine

Abstract

The present invention discloses a fast-type heat exchanger bending machine, which includes a frame and a bending device arranged on the frame. A feeding connection device is arranged on the front side of the frame. A follow-up platform capable of supporting the workpiece during bending is also arranged on the frame. The follow-up platform includes a platform support capable of moving left and right on the frame and a table board arranged on the top of the platform support. A follow-up driver capable of driving the table board to move up and down is arranged on the platform support. When the table board moves up or down, the workpiece can be separated from the bending device. A loading and unloading handling mechanism for moving the workpiece backward to achieve loading and unloading is also arranged on the frame. The present invention has fast forming, less time-consuming for loading and unloading, and high working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchanger production, and particularly to a fast heat exchanger bending machine. Background Art

[0002] In the field of air conditioner accessory production, it is necessary to bend the heat exchanger according to the shape of the air conditioner. For example, a plate-shaped heat exchanger is bent once into an L shape, twice into a U shape, or three times into a G shape. In the bending forming process of an air conditioner heat exchanger, the heat exchanger is first transported to a set position, so that the part to be bent abuts against the bending roller, and then the heat exchanger is clamped so that the heat exchanger is bent against the arc surface of the bending roller to form.

[0003] In the prior art, limited by the structure of the bending machine, generally only feeding and discharging can be carried out from the same side of the bending machine, and the working efficiency is not high enough.

[0004] The patent with the publication number of CN 112775224 A discloses a bending machine capable of multi-directional feeding and discharging. In this bending machine, the first bending mechanism and the second bending mechanism can both move in two axes in the up-down and left-right directions. When bending a workpiece, the workpiece is first fed onto the follow-up mechanism, and then the first bending mechanism and the second bending mechanism respectively sleeve onto the workpiece from the left and right ends of the workpiece, and then the workpiece is clamped and bent. When discharging, it is necessary to first move the first bending mechanism and the second bending mechanism to separate the workpiece from the bending mechanism, and then the workpiece can be removed. In this bending machine, although the workpiece can be fed and discharged from different sides of the bending machine, the first bending mechanism and the second bending mechanism need to be moved before and after bending, resulting in the working efficiency still not being high enough. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a fast heat exchanger bending machine.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] The cam is provided with a plurality of movable parts, and the movable parts are provided with a plurality of movable parts, and the movable parts are provided with a plurality of movable parts.

[0008] Preferably, the frame is provided with a crossbeam arranged along the front-to-back direction, and the loading and unloading material handling mechanism includes a clamping and moving material device capable of moving forward and backward along the crossbeam.

[0009] Preferably, a transport rail is provided on the crossbeam, and the clamping and material moving device includes a first clamp arm slidably cooperated with the transport rail, a second clamp arm, a first transport driver capable of driving the first clamp arm to slide along the transport rail, and a second transport driver capable of driving the second clamp arm to slide along the transport rail.

[0010] Preferably, the loading and connecting device includes a loading and connecting rack, a steering assembly arranged on the loading and connecting rack, and a loading and material stopping assembly arranged on the rear side of the steering assembly, the steering assembly includes a turntable and a steering drive capable of driving the turntable to rotate, and the loading and material stopping assembly includes a material stopping member and a loading door driver capable of driving the material stopping member to move up and down.

[0011] Preferably, a lifting plate is provided on the left and right sides of the turntable respectively, and the lifting plate is connected to a lifting driver capable of driving it to perform lifting motion, so that the upper surface of the lifting plate can switch between a position higher than the upper surface of the turntable and a position lower than the upper surface of the turntable.

[0012] Preferably, a horizontal roller is provided at the front end of the platform bracket, the axis of the horizontal roller is arranged along the left-right direction and the top of the horizontal roller is higher than the upper surface of the table panel.

[0013] Preferably, the bending device comprises a clamping bending mechanism located on one side of the follower platform.

[0014] Preferably, the bending mechanism includes two bending rotating seats arranged one in front of the other, a bending roller installed between the two bending rotating seats, and a bending driver capable of driving the bending rotating seats and the bending roller to rotate around the axis of the bending roller. A first notch is provided in the middle of the side of the bending rotating seat facing the follow-up platform. The first notch of the front bending rotating seat forms the feed inlet or a part of the feed inlet, and the first notch of the rear bending rotating seat forms the discharge outlet or a part of the discharge outlet. The bending roller is located above the first notch, and a clamping device capable of clamping the workpiece located in the first notch is provided between the two bending rotating seats.

[0015] Preferably, a bending bracket is provided on the frame. The two bending rotating seats are respectively rotatably connected to the front and rear parts of the bending bracket. The bending rotating seat is C-shaped, and the bending roller is fixedly installed at the upper end of the bending rotating seat. The clamping device includes a first clamping plate fixed relative to the bending roller, a second clamping plate located below the first clamping plate, and a clamping driver capable of driving the second clamping plate to move up and down.

[0016] Preferably, the bending device further includes a winding mechanism on the other side of the follow-up platform. The winding mechanism includes a winding support platform, two winding rotating seats respectively arranged on the front and rear sides of the winding support platform, a winding roller installed between the two winding rotating seats, and a winding driver capable of driving the winding support platform and the winding rotating seats to rotate around the axis of the winding roller. A second notch is provided in the middle of the side of the winding rotating seat facing the follow-up platform. The second notch of the front winding rotating seat forms the feed inlet or a part of the feed inlet, and the second notch of the rear winding rotating seat forms the discharge outlet or a part of the discharge outlet.

[0017] Preferably, a winding bracket is provided on the frame. The two winding rotating seats are respectively rotatably connected to the front and rear parts of the winding bracket. The winding rotating seat is C-shaped, and the winding roller is fixedly installed at the upper end of the winding rotating seat and is located above the winding support platform.

[0018] Preferably, a positioning push plate is provided on the winding support platform, and the positioning push plate is connected to a positioning driver capable of driving it to move left and right on the winding support platform.

[0019] The beneficial effects of the present invention are as follows: In the present invention, the workpiece fed by the conveyor line first enters the loading connection device, and then is transported by the loading and unloading handling mechanism, and moves through the feeding port of the bending device to the working areas of the bending device and the follower platform. Then, the bending device works to bend the workpiece into an L shape or a U shape. Finally, the table board of the follower platform raises or lowers the workpiece by a certain height to separate the workpiece from the bending device. Finally, through the loading and unloading handling mechanism, the formed workpiece can be moved backward through the discharging port of the bending device to complete the unloading. During the process of bending and unloading the processed workpiece, the next workpiece fed by the conveyor line enters the loading connection device, and this workpiece can be processed immediately after the previous workpiece is unloaded. The forming is fast, the time-consuming of the loading and unloading process is less, and the working efficiency is high. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of the loading process of the present invention;

[0021] Figure 2 is the structural schematic diagram of the unloading process of the present invention;

[0022] Figure 3 is one of the structural schematic diagrams of the present invention;

[0023] Figure 4 is the other structural schematic diagram of the present invention;

[0024] Figure 5 is the structural schematic diagram of the follower mechanism;

[0025] Figure 6 is the structural schematic diagram of the loading connection device;

[0026] Figure 7 is the structural schematic diagram of the bending mechanism;

[0027] Figure 8 is the structural schematic diagram of the clamping bending mechanism. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings.

[0029] It should be noted that all the directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the descriptions involving "preferred", "sub-preferred", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "preferred", "sub-preferred" can explicitly or implicitly include at least one of such features.

[0030] Referring to Figures 1 to 8 , an embodiment of the present invention provides a fast-type heat exchanger bending machine, which includes a frame 1 and a bending device arranged on the frame 1. A loading connection device 2 is arranged on the front side of the frame 1. A follow-up platform 3 capable of supporting the heat exchanger during bending is also arranged on the frame 1. The bending rollers of the bending device are arranged along the front-rear direction. The follow-up platform 3 includes a platform bracket 31 capable of moving left and right on the frame 1 and a table board 32 arranged on the top of the platform bracket 31. A follow-up driver 33 capable of driving the table board 32 to move up and down is arranged on the platform bracket 31. The follow-up driver 33 can adopt power devices such as air cylinders and electric push rods. When the table board 32 moves up or down, it can make the bent workpiece 9 rise or fall to separate from the bending device. A space for feeding the heat exchanger in a straight shape is left at the front side part of the frame 1, and a space for discharging the L-shaped and U-shaped heat exchangers is left at the rear side of the frame 1. An inlet for the workpiece 9 before bending is arranged at the front side part of the bending device, and an outlet for the workpiece 9 after bending is arranged at the rear side part of the bending device. A loading and unloading handling mechanism is also arranged on the frame 1. The loading and unloading handling mechanism is used to move the workpiece 9 from the loading connection device 2 backward to the working areas of the bending device and the follow-up platform 3, and can also be used to move the workpiece 9 from the follow-up platform 3 backward outside the frame 1.

[0031] A left-right guiding rail is arranged on the frame 1. The platform bracket 31 of the follow-up platform 3 is slidably installed on this rail. When bending the workpiece 9, the part of the workpiece 9 that cooperates with the follow-up platform 3 will move left and right, and the follow-up platform 3 will move along with this part of the workpiece 9.

[0032] In the present invention, the workpiece 9 coming from the conveyor line first enters the loading connection device 2, and then is transported by the loading and unloading handling mechanism, moves through the inlet of the bending device to the working areas of the bending device and the follow-up platform 3. Then the bending device works to bend the workpiece 9 into an L shape or a U shape. Finally, the table board 32 of the follow-up platform 3 raises or lowers the workpiece 9 by a certain height to separate the workpiece 9 from the bending device. Finally, through the loading and unloading handling mechanism, the formed workpiece 9 can be moved backward through the outlet of the bending device to complete the unloading. During the bending and unloading process of the processed workpiece 9, the next workpiece 9 coming from the conveyor line enters the loading connection device 2. After the previous workpiece 9 is unloaded, this workpiece 9 can be processed immediately, with fast forming and high working efficiency.

[0033] In a preferred scheme of the present invention, a cross beam 11 arranged along the front-rear direction is arranged on the frame 1. The loading and unloading handling mechanism includes a clamping and moving device capable of moving back and forth along the cross beam 11.

[0034] Specifically, a transport guide rail 111 is provided on the crossbeam 11, and the clamping and moving device includes a first clamp arm 41 and a second clamp arm 42 that are slidably matched with the transport guide rail 111, a first transport driver 43 that can drive the first clamp arm 41 to slide along the transport guide rail 111, and a second transport driver 44 that can drive the second clamp arm 42 to slide along the transport guide rail 111. The first transport driver 43 and the second transport driver 44 are both servo motors, and the two servo motors drive the two clamp arms to move through a gear rack mechanism.

[0035] In a preferred embodiment of the present invention, the loading docking device 2 includes a loading docking rack 21, a steering assembly arranged on the loading docking rack 21, and a loading stop assembly arranged on the rear side of the steering assembly, the steering assembly includes a turntable 221 and a steering driver 222 capable of driving the turntable 221 to rotate, the loading stop assembly includes a stopper 231 and a loading door driver 232 capable of driving the stopper 231 to move up and down, and the stopper 231 blocks the heat exchanger when it is raised to limit the heat exchanger from entering the working area of ​​the bending device and the follower platform 3 backward. The workpiece 9 fed by the conveyor line may be placed in the front-to-back direction or in the left-to-right direction. The workpiece 9 placed in the front-to-back direction can be rotated 90 degrees by the steering seat to adjust it to a suitable orientation for the bending machine of the present invention. The material stopper 231 has two functions. The first is to stop the workpiece 9 coming from the conveyor line to prevent it from continuing to move backward under the action of inertia. The second is to perform preliminary positioning of the workpiece 9 so that the position of the rear edge of the workpiece 9 meets the requirements.

[0036] The steering driver 222 is preferably a servo motor, which drives the turntable 221 to rotate through a gear set, and the loading door driver 232 is preferably a power device such as a cylinder or an electric push rod.

[0037] In a further embodiment of the present invention, a lifting plate 241 is provided on the left and right sides of the turntable 221, and the lifting plate 241 is connected to a lifting driver 242 capable of driving it to perform lifting motion, so that the upper surface of the lifting plate 241 can be switched between a position higher than the upper surface of the turntable 221 and a position lower than the upper surface of the turntable 221. The lifting driver 242 is preferably a power device such as a cylinder or an electric push rod. After the orientation of the workpiece 9 on the turntable 221 is adjusted to the right position, the lifting plate 241 lifts the workpiece 9 to a sufficient height, and the workpiece 9 can be moved backward to the working area of ​​the bending device and the follower platform 3 through the loading and unloading handling mechanism.

[0038] In a further embodiment of the present invention, a conveying device 25 located in front of the turntable 221 is provided on the loading docking frame 21, and the transmission device 25 is used to convey the workpiece 9 to the turntable 221. The conveying device can be a roller conveyor line, a belt conveyor line or a group of pusher devices.

[0039] In a further embodiment of the present invention, a blanking table 5 for receiving the processed workpiece 9 is provided at the rear side of the frame 1. During blanking, the loading and unloading handling mechanism moves the workpiece 9 from the follower platform 3 backward to the blanking table 5 outside the frame 1, facilitating the next step of processing.

[0040] In a further embodiment of the present invention, a horizontal rotating roller 34 is hinged at the front end of the platform support 31. The axis of the horizontal rotating roller 34 is arranged along the left - right direction and the top of the horizontal rotating roller 34 is higher than the upper surface of the table top plate 32. During loading, the horizontal rotating roller 34 can receive the workpiece 9, and at the same time can reduce friction, and smoothly receive the workpiece 9 onto the bending device and the follower platform 3.

[0041] In a preferred embodiment of the present invention, the bending device includes a clamping - bending mechanism 6 located on one side of the follower platform 3 and a winding - bending mechanism 7 located on the other side of the follower platform 3. When the clamping - bending mechanism 6 is used alone, the workpiece 9 can be bent into an L - shape, and when both the clamping - bending mechanism 6 and the winding - bending mechanism 7 are used, the workpiece 9 can be bent into a U - shape.

[0042] In a preferred embodiment of the present invention, the clamping - bending mechanism 6 includes two clamping - bending rotating seats 62 arranged one in front of the other, a clamping - bending roller 63 installed between the two clamping - bending rotating seats 62, and a clamping - bending driver 64 capable of driving the clamping - bending rotating seats 62 and the clamping - bending roller 63 to rotate around the axis of the clamping - bending roller 63. A first notch 621 is provided in the middle of the side of the clamping - bending rotating seat 62 facing the follower platform 3. The first notch 621 of the front clamping - bending rotating seat 62 forms part of the feed inlet, and the first notch 621 of the rear clamping - bending rotating seat 62 forms part of the discharge outlet. The clamping - bending roller 63 is located above the first notch 621. A clamping device capable of clamping the workpiece 9 located in the first notch 621 is provided between the two clamping - bending rotating seats 62.

[0043] Specifically, the clamping - bending rotating seat 62 is C - shaped, and the clamping - bending roller 63 is fixedly installed at the upper end of the clamping - bending rotating seat 62. A clamping - bending support 61 is provided on the frame 1. The two clamping - bending rotating seats 62 are respectively rotatably connected to the front and rear parts of the clamping - bending support 61. The clamping device includes a first clamping plate 65 fixed relative to the clamping - bending roller 63, a second clamping plate 66 located below the first clamping plate 65, and a clamping driver capable of driving the second clamping plate 66 to move up and down. The clamping - bending driver 64 is a motor fixed on the clamping - bending rotating seat 62. Second circular arc racks 68 coaxial with the clamping - bending roller 63 are provided on both the front and rear sides of the clamping - bending support 61. The output end of the clamping - bending driver 64 is connected to two coaxial second gears 69, and the two second gears 69 are respectively engaged with the two second circular arc racks 68 so that when the clamping - bending driver 64 works, it can drive the clamping - bending rotating seats 62 and the clamping - bending roller 63 to rotate.

[0044] In a preferred embodiment of the present invention, the bending device further includes a bending mechanism 7 located on the other side of the follower platform 3. The bending mechanism includes a bending support table 73, two bending rotating seats 76 respectively arranged on the front and rear sides of the bending support table 73, a bending roller 72 installed between the two bending rotating seats 76, and a bending driver 74 capable of driving the bending support table 73 and the bending rotating seats 76 to rotate around the axis of the bending roller 72. A second notch 761 is provided in the middle of the side of the bending rotating seat 76 facing the follower platform 3. The second notch 761 of the front bending rotating seat 76 forms a part of the feed inlet, and the second notch 761 of the rear bending rotating seat 76 forms a part of the discharge outlet.

[0045] Specifically, a bending bracket 71 is provided on the frame 1, and the two bending rotating seats 76 are respectively rotatably connected to the front and rear parts of the bending bracket 71. The bending rotating seat 76 is in a C shape, and the bending roller 72 is fixedly installed at the upper end of the bending rotating seat 76 and is located above the bending support table 73. The bending driver 74 is a motor fixed on the bending support table 73. First arc-shaped racks 75 coaxial with the bending roller 72 are provided on both the front and rear sides of the bending bracket 71. The output end of the bending driver 74 is connected to two coaxial first gears, and the two first gears are respectively engaged with the two first arc-shaped racks 75 so that when the bending driver 74 works, it can drive the support table to rotate around the bending roller 72.

[0046] In the above solution, after the workpiece 9 is bent, when the table top plate 32 moves downward, it can make the bent workpiece 9 descend to disengage from the bending device, and then the workpiece 9 can be moved backward by the loading and unloading handling mechanism to complete the unloading.

[0047] In a further embodiment of the present invention, a positioning push plate 81 is provided on the bending support table 73, and the positioning push plate 81 is connected to a positioning driver capable of driving it to move left and right on the bending support table 73. The positioning driver is preferably a motor, which drives the positioning push plate 81 to move left and right through a screw pair. When the workpiece 9 is loaded onto the bending device and the follower platform 3, one end of it is supported on the bending support table 73, and by pushing it to a set position with the positioning push plate 81, the workpiece 9 can be positioned in the left and right directions to make the bending position meet the requirements.

[0048] In some embodiments of the present invention, the clamping and bending mechanism 6 and the bending mechanism 7 can also adopt other structural forms. For example, the clamping and bending roller 63 is fixedly installed at the lower end of the clamping and bending rotating seat 62, and correspondingly, the second clamping plate 66 is located above the first clamping plate 65; the bending roller 72 is fixedly installed at the lower end of the bending rotating seat 76 and is located below the bending support table 73. In this solution, after the workpiece 9 is bent, when the table top plate 32 moves upward, it can make the bent workpiece 9 rise to disengage from the bending device, and then the workpiece 9 can be moved backward by the loading and unloading handling mechanism to complete the unloading.

[0049] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A fast-type heat exchanger bending machine, comprising a frame (1) and a bending device arranged on the frame (1), characterized in that, A loading connection device (2) is arranged on the front side of the described frame (1). A follow-up platform (3) that can support the workpiece (9) and move in cooperation with the bending device when bending the workpiece (9) is also arranged on the frame (1). The follow-up platform (3) includes a platform bracket (31) and a table board (32) arranged on the top of the platform bracket (31). A follow-up driver (33) that can drive the table board (32) to move up and down is arranged on the platform bracket (31). When the table board (32) moves up or down, the bent workpiece (9) is separated from the bending device. An inlet for the workpiece (9) before bending is arranged at the front side of the bending device, and an outlet for the workpiece (9) after bending is arranged at the rear side of the bending device. A loading and unloading handling mechanism is also arranged on the frame (1). The loading and unloading handling mechanism is used to move the workpiece (9) from the loading connection device (2) backward to the working areas of the bending device and the follow-up platform (3), and can also be used to move the workpiece (9) from the follow-up platform (3) backward outside the frame (1); A horizontal roller (34) is arranged at the front end of the platform bracket (31). The axis of the horizontal roller (34) is arranged along the left-right direction, and the top of the horizontal roller (34) is higher than the upper surface of the table board (32); A left-right guiding rail is arranged on the frame (1). The platform bracket (31) of the follow-up platform (3) is slidably installed on the rail. When bending the workpiece (9), the part of the workpiece (9) that cooperates with the follow-up platform (3) will move left and right, and the follow-up platform (3) will move along with this part of the workpiece (9).

2. The fast heat exchanger bending machine according to claim 1, characterized in that, A cross beam (11) arranged along the front-rear direction is arranged on the frame (1). The loading and unloading handling mechanism includes a clamping and moving device that can move back and forth along the cross beam (11).

3. A quick-type heat exchanger bending machine according to claim 1, characterized in that, The loading connection device (2) includes a loading connection frame (21), a steering component arranged on the loading connection frame (21), and a loading material blocking component arranged at the rear side of the steering component. The steering component includes a turntable (221) and a steering driver (222) that can drive the turntable (221) to rotate. The loading material blocking component includes a material blocking piece (231) and a loading door driver (232) that can drive the material blocking piece (231) to move up and down.

4. A fast heat exchanger bending machine according to claim 3, characterized in that, Lifting support plates (241) are respectively arranged on the left and right sides of the turntable (221). The lifting support plates (241) are connected with a lifting driver (242) that can drive them to move up and down, so that the upper surface of the lifting support plates (241) can be switched between a position higher than the upper surface of the turntable (221) and a position lower than the upper surface of the turntable (221).

5. A fast heat exchanger bending machine according to claim 1, characterized in that, The described bending device includes a clamping and bending mechanism (6) located on one side of the follow-up platform (3).

6. A quick-type heat exchanger bending machine according to claim 5, characterized in that, The described bending mechanism (6) includes two bending rotating seats (62) arranged one in front of the other, a bending roller (63) installed between the two bending rotating seats (62), and a bending driver (64) capable of driving the bending rotating seats (62) and the bending roller (63) to rotate around the axis of the bending roller (63). A first notch (621) is provided in the middle of the side of the bending rotating seat (62) facing the follower platform (3). The first notch (621) of the front bending rotating seat (62) constitutes the feed inlet or a part of the feed inlet, and the first notch (621) of the rear bending rotating seat (62) constitutes the discharge outlet or a part of the discharge outlet. A clamping device capable of clamping the workpiece (9) located in the first notch (621) is provided between the two bending rotating seats (62).

7. A quick-type heat exchanger bending machine according to claim 6, characterized in that, A bending bracket (61) is provided on the described frame (1). The two bending rotating seats (62) are respectively rotatably connected to the front and rear parts of the bending bracket (61). The bending rotating seat (62) is in a C shape. The bending roller (63) is fixedly installed at the upper end of the bending rotating seat (62). The clamping device includes a first clamping plate (65) fixed relative to the bending roller (63), a second clamping plate (66) located below the first clamping plate (65), and a clamping driver capable of driving the second clamping plate (66) to move up and down.

8. A quick-type heat exchanger bending machine according to claim 5, characterized in that, The described bending device further includes a bending mechanism (7) located on the other side of the follower platform (3). The bending mechanism includes a bending support table (73), two bending rotating seats (76) respectively arranged on the front and rear sides of the bending support table (73), a bending roller (72) installed between the two bending rotating seats (76), and a bending driver (74) capable of driving the bending support table (73) and the bending rotating seats (76) to rotate around the axis of the bending roller (72). A second notch (761) is provided in the middle of the side of the bending rotating seat (76) facing the follower platform (3). The second notch (761) of the front bending rotating seat (76) constitutes the feed inlet or a part of the feed inlet, and the second notch (761) of the rear bending rotating seat (76) constitutes the discharge outlet or a part of the discharge outlet.

9. A quick-type heat exchanger bending machine according to claim 8, characterized in that, A positioning push plate (81) is provided on the described bending support table (73). The positioning push plate (81) is connected to a positioning driver (82) capable of driving it to move left and right on the bending support table (73).

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