Fin cutting device

Abstract

The utility model provides a fin cutting device, which relates to the fin evaporator processing technology and comprises a feeding plate, limiting belts are arranged on two sides of the upper surface of the feeding plate, and a first conveying belt parallel to the length direction of the feeding plate is embedded in the upper surface of the feeding plate; the upper surface of the bearing plate is connected to one end of the feeding plate in a coplanar mode, a second conveying belt parallel to the length direction of the feeding plate is embedded in the upper surface of the bearing plate, third conveying belts are arranged above the second conveying belt at intervals, and the distance between the third conveying belts is adjustable; the three cutting mechanisms each comprise a cutting knife, a driving plate and two fixing plates, the upper end of each cutting knife is connected with the corresponding driving plate, the lower end of each cutting knife is a knife point parallel to the upper surface of the feeding plate, the fixing plates are arranged outside the two side faces of each cutting knife in the knife point direction of the corresponding cutting knife, and the driving plates and the fixing plates move in the height direction of the feeding plate. According to the fin cutting device, fins with different lengths and widths can be cut, the cutting positions are not prone to bending, and the fin cutting device has high practicability.

Description

Technical Field

[0001] The present application relates to the processing technology of fin evaporators, and specifically relates to a fin cutting device. Background Art

[0002] A fin evaporator is a common heat exchanger, mainly used in refrigeration and air-conditioning systems. A fin evaporator generally consists of fins, pipelines, a frame, and connectors. The fins are usually made of thin aluminum metal sheets, used to increase the surface area of the evaporator to improve its performance. In the prior art, generally, an aluminum strip needs to be cut into fins first, the cut fins are punched, and finally the formed fins are overlapped; currently, when cutting an aluminum strip into fins, generally only the length of the fins can be controlled, and the width of the fins cannot be controlled. To cut fins with different widths, aluminum strips with different widths must be used, which is rather troublesome; and because the fins are thin, the cutting parts of the fins are prone to bending during the cutting process, which in turn affects the subsequent fin processing procedures. Content of the Utility Model

[0003] To solve the above-mentioned defects of related prior art, the present application provides a fin cutting device, which can cut fins with different lengths and widths, and the cutting parts are not prone to bending, and has strong practicability.

[0004] To achieve the above purpose, the present utility model adopts the following technologies:

[0005] A fin cutting device, comprising:

[0006] A feeding plate, on both sides of the upper surface of which there are limiting belts, and a first conveyor belt parallel to the length direction of the feeding plate is buried in the upper surface of the feeding plate;

[0007] A bearing plate, the upper surface of which is coplanarly connected to one end of the feeding plate. A second conveyor belt parallel to the length direction of the feeding plate is buried in the upper surface of the bearing plate, and a third conveyor belt is arranged above the second conveyor belt at an adjustable interval;

[0008] There are three cutting mechanisms, each of which includes a cutting knife, a driving plate, and two fixing plates. The upper end of the cutting knife is connected to the driving plate, and the lower end is a cutting edge parallel to the upper surface of the feeding plate. The fixing plates are respectively arranged on the outer sides of both sides of the cutting knife along the direction of the cutting edge of the cutting knife, and both the driving plate and the fixing plates move along the height direction of the feeding plate;

[0009] On the upper surface of one end of the feeding plate, a first receiving groove penetrating both sides of itself is opened along the width direction of the feeding plate. On the upper surface of the bearing plate, two moving grooves are respectively opened on both sides of the second conveyor belt. Moving plates moving along the width direction of the feeding plate are arranged in the moving grooves. On the upper surfaces of the moving plates, second receiving grooves penetrating both ends of themselves are opened along the width direction of the feeding plate. The cutting knives of the three cutting mechanisms are respectively arranged at intervals directly above the first receiving groove and the second receiving grooves.

[0010] Further, a first electric lead screw cooperating with the moving plate is arranged along the width direction of the feeding plate in the moving groove.

[0011] Further, first support rods are arranged outside both sides of the feeding plate. The upper ends of the first support rods are connected to the same first mounting plate. A first air cylinder is arranged along the height direction of the feeding plate on the first mounting plate. The driving shaft of the first air cylinder is connected to a driving plate matching the first accommodating groove.

[0012] Further, second support columns are arranged outside both sides of the bearing plate. The second support columns are connected to the same second mounting plate. Two second electric lead screws cooperating with the matching blocks are coaxially arranged along the length direction of the feeding plate on the second mounting plate. The matching blocks are both connected to positioning plates. Third air cylinders are arranged along the height direction of the feeding plate on the positioning plates. The driving shafts of the third air cylinders are respectively connected to driving plates matching the second accommodating grooves.

[0013] Further, the second mounting plate is connected to a top plate. A fourth air cylinder is arranged along the height direction of the feeding plate on the top plate. The driving shaft of the fourth air cylinder is connected to a mounting frame for loading the third transmission belt.

[0014] Further, two first sliding channels are penetrated along the height direction of the feeding plate at both ends of the driving plate. Slide rods are slidably fitted in the first sliding channels. The upper ends of the two slide rods at the same end of the driving plate are connected to the same limiting block, and the lower ends are respectively connected to the same end of the two fixing plates matching the driving plate. First springs are coaxially sleeved outside the slide rods. The upper ends of the first springs are connected to the driving plate, and the lower ends are connected to the fixing plates.

[0015] Further, two fixing plates that are matched with the second accommodating groove and have the farthest distance are both penetrated with second sliding channels, and a vacuum machine and a vacuum chamber communicated with the vacuum machine are arranged. A limiting ring is coaxially arranged at the upper end of the second sliding channel. A vertical pipe is slidably fitted coaxially with the limiting ring. The lower end of the vertical pipe is coaxially communicated with a suction cup having a size matching the second sliding channel. The upper end of the vertical pipe is communicated with a vacuum pipe, and the vacuum pipe is communicated to the vacuum chamber on the fixing plate where it is located. A lug is arranged at the upper end of the vertical pipe, and a second spring is arranged between the lug and the limiting ring.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The aluminum strip is driven to move on the feeding plate and the bearing plate by the first conveyor belt, the second conveyor belt, and the third conveyor belt, and the aluminum strip is cut into fins with different widths and different lengths by the cutting mechanism; during cutting, the aluminum strip is fixed by the fixing plate, and the cutting is completed through the cooperation of the cutting knife with the first accommodating groove and the second accommodating groove, and the cutting part is not prone to bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of the fin cutting device of the embodiment of the present application.

[0019] Figure 2 It is a partial sectional perspective view of the first receiving groove and the matching cutting structure of the embodiment of the present application.

[0020] Figure 3 is the present application Figure 2 A partial enlarged view at position A in.

[0021] Figure 4 It is an exploded perspective view of the carrier plate and the cutting mechanism matching the second receiving groove of the embodiment of the present application.

[0022] Figure 5 It is a perspective view of the vacuum machine, vacuum chamber, and vacuum tube of the embodiment of the present application.

[0023] Figure 6 It is a partial sectional perspective view of the second sliding channel and the limiting ring of the embodiment of the present application.

[0024] Markings in the figure: 1 - feeding plate, 11 - limiting belt, 12 - first conveyor belt, 13 - first receiving groove, 14 - first support rod, 15 - first mounting plate, 16 - first cylinder, 2 - carrier plate, 21 - second conveyor belt, 22 - third conveyor belt, 23 - moving groove, 24 - moving plate, 25 - second receiving groove, 26 - first electric screw rod, 27 - second support column, 28 - second mounting plate, 29 - second electric screw rod, 210 - mating block, 211 - positioning plate, 212 - third cylinder, 213 - top plate, 214 - fourth cylinder, 215 - mounting frame, 3 - cutting mechanism, 31 - cutting knife, 32 - driving plate, 33 - fixing plate, 34 - sliding rod, 35 - limiting block, 36 - first spring, 37 - vacuum chamber, 38 - limiting ring, 39 - vertical pipe, 310 - suction cup, 311 - vacuum tube, 312 - vacuum machine, 313 - lug, 314 - second spring. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will describe the implementation manners of the present utility model in detail with reference to the accompanying drawings. However, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] As Figure 1 shown, this embodiment provides a fin cutting device, including a feeding plate 1, a carrier plate 2, and a cutting mechanism 3.

[0027] Specifically, as Figure 1As shown in the figure, limiting bands 11 are provided on both sides of the upper surface of the feeding plate 1. The distance between the limiting bands 11 matches the width of the aluminum sheet to be cut, and is used to limit the moving direction of the aluminum sheet on the feeding plate 1. A first conveyor belt 12 parallel to the length direction of the feeding plate 1 is embedded in the upper surface of the feeding plate 1. The first conveyor belt 12 is used to contact the aluminum sheet on the feeding plate 1 and drive it to move along the length direction of the feeding plate 1.

[0028] Specifically, as Figure 1 shown in the figure, the upper surface of the bearing plate 2 is coplanarly connected to one end of the feeding plate 1. A second conveyor belt 21 parallel to the length direction of the feeding plate 1 is embedded in the upper surface of the bearing plate 2. A third conveyor belt 22 is provided above the second conveyor belt 21 at an adjustable interval. The second conveyor belt 21 and the third conveyor belt 22 are respectively used to contact the upper and lower surfaces of the aluminum sheet from the feeding plate 1 and clamp the aluminum sheet, and then drive the aluminum sheet to move along the length direction of the feeding plate 1.

[0029] Specifically, as Figure 1 and Figure 2 shown in the figure, there are three cutting mechanisms 3, each including a cutting knife 31, a driving plate 32 and two fixing plates 33. The upper end of the cutting knife 31 is connected to the driving plate 32, and the lower end is a cutting edge parallel to the upper surface of the feeding plate 1. The fixing plates 33 are respectively arranged on the outer sides of the two side surfaces of the cutting knife 31 along the direction of the cutting edge of the cutting knife 31. More specifically, the distance between the fixing plates 33 matches the thickness of the cutting knife 31. The driving plate 32 and the fixing plates 33 both move along the height direction of the feeding plate 1. The driving plate 32 is used to drive the cutting knife 31 to move downward and cut the aluminum sheet into fins of a certain shape. The fixing plates 33 are used to squeeze and fix both sides of the cutting part of the aluminum sheet to prevent the cutting part of the aluminum sheet from bending.

[0030] More specifically, as Figure 1 、 Figure 2 、 Figure 4 shown in the figure, a first receiving groove 13 penetrating both sides of the feeding plate 1 along its width direction is formed on the upper surface of one end of the feeding plate 1. Two moving grooves 23 are formed on the upper surface of the bearing plate 2, respectively located on both sides of the second conveyor belt 21. Moving plates 24 moving along the width direction of the feeding plate 1 are provided in the moving grooves 23. Second receiving grooves 25 penetrating both ends of the moving plates 24 along the width direction of the feeding plate 1 are formed on the upper surfaces of the moving plates 24. The cutting knives 31 of the three cutting mechanisms 3 are respectively arranged at intervals directly above the first receiving groove 13 and the second receiving groove 25. The thickness of the cutting knife 31 matching the first receiving groove 13 matches the width of the first receiving groove 13 and is used to extend into the first cutting groove 13 during cutting. The thickness of the cutting knife 31 matching the second receiving groove 25 matches the width of the second receiving groove 25 and is used to extend into the second receiving groove 25 during cutting.

[0031] During operation, one end of the strip-shaped aluminum sheet is placed on the feeding plate 1, and the first conveyor belt 12 drives one end of the strip-shaped aluminum sheet to pass through the upper end of the first receiving groove 13 and enter onto the bearing plate 2. When the distance between one end of the strip-shaped aluminum sheet and the first receiving groove 13 is equal to the length of the target fin, the fixing plate 33 and the driving plate 32 that match the first receiving groove 13 are moved downward, so that the fixing plate 33 presses the aluminum sheets on both sides of the upper end of the first receiving groove 13. At the same time, the cutting knife 31 passes through between the fixing plates 33, cuts the aluminum sheet, and enters the first receiving groove 13; after the cutting is completed, the fixing plate 33 and the driving plate 32 that match the first receiving groove 13 are moved upward, and the third conveyor belt 22 is moved downward, so that the third conveyor belt 22 and the second conveyor belt 21 clamp the aluminum sheet with a determined length on the bearing plate 2 and drive it to completely move onto the bearing plate 2. The moving plate 24 is moved, and the cutting mechanism 3 that matches the second receiving groove 25 moves along with the moving plate 24, so that the distance between the two second receiving grooves 25 is equal to the width of the target fin. The fixing plate 33 and the driving plate 32 that match the second receiving groove 25 are moved downward, so that the fixing plate 33 presses the aluminum sheets on both sides of the upper end of the second receiving groove 25. At the same time, the cutting knife 31 passes through between the fixing plates 33, cuts the aluminum sheet, and enters the second receiving groove 25. After the cutting is completed, the formed fins are conveyed out of the bearing plate 2 through the second conveyor belt 21 and the third conveyor belt 22, and then the above operations are repeated for the strip-shaped aluminum sheet on the feeding plate 1 to cut the next section of fins.

[0032] Preferably, as Figure 1 and Figure 4 shown, a first electric lead screw 26 that cooperates with the moving plate 24 is provided in the moving groove 23 along the width direction of the feeding plate 1, and the first electric lead screw 26 is used to drive the moving plate 24 to move along the width direction of the feeding plate 1.

[0033] Preferably, as Figure 2 shown, first support rods 14 are provided outside both sides of the feeding plate 1, and the first support rods 14 are provided on the installation surface of the device; the upper ends of the first support rods 14 are connected to the same first mounting plate 15, and a first air cylinder 16 is provided on the first mounting plate 15 along the height direction of the feeding plate 1. The driving shaft of the first air cylinder 16 is connected to the driving plate 32 that matches the first receiving groove 13 and is used to drive the driving plate 32 to move along the height direction of the feeding plate 1.

[0034] Preferably, as Figure 1 、 Figure 2 、 Figure 4As shown, on both sides of the carrier plate 2, there are second support columns 27, and the second support columns 27 are arranged on the installation surface of the device; the second support columns 27 are connected to the same second mounting plate 28. Along the length direction of the feeding plate 1, two second electric lead screws 29 that cooperate with the mating blocks 210 are coaxially arranged on the second mounting plate 28. The mating blocks 210 are all connected to positioning plates 211. Further preferably, in this example, on both sides of the carrier plate 2, there are two second support columns 27, and correspondingly, two second mounting plates 28 arranged at intervals are connected. Along the length direction of the feeding plate 1, two second electric lead screws 29 that cooperate with the mating blocks 210 are coaxially arranged on each of the second mounting plates 28. The mating blocks 210 at the same end on different second mounting plates 28 are connected to the same positioning plate 211; on the positioning plates 211, third cylinders 212 are arranged along the height direction of the feeding plate 1. The driving shafts of the third cylinders 212 are respectively connected to the driving plates 32 that match the second receiving grooves 25. The second electric lead screws 29 are used to drive the driving plates 32 that match the second receiving grooves 25 to move along the width direction of the feeding plate 1, and the third cylinders 212 are used to drive the driving plates 32 that match the second receiving grooves 25 to move along the height direction of the feeding plate 1.

[0035] Preferably, as Figure 1 and Figure 4 shown, the second mounting plate 28 is connected to a top plate 213. Further preferably, the two second mounting plates 28 are connected to the same top plate 213; on the top plate 213, two fourth cylinders 214 are arranged along the height direction of the feeding plate 1. The driving shafts of the fourth cylinders 214 are connected to a mounting frame 215 that loads the third conveyor belt 22. The fourth cylinders 214 are used to drive the third conveyor belt 22 to move along the height direction of the feeding plate 1, thereby adjusting its distance from the second conveyor belt 21.

[0036] Preferably, as Figure 2 and Figure 3 shown, two first sliding channels are penetrated along the height direction of the feeding plate 1 at both ends of the driving plate 32. Slide bars 34 are slidably fitted in the first sliding channels. At the upper ends of the two slide bars 34 at the same end of the driving plate 32, they are connected to the same limiting block 35, and at the lower ends, they are respectively connected to the same end of the two fixing plates 33 that match the driving plate 32. Coaxial first springs 36 are sleeved outside the slide bars 34. The upper ends of the first springs 36 are connected to the driving plate 32, and the lower ends are connected to the fixing plates 33. During operation, when the driving plate 32 moves downward, the fixing plate 33 first contacts the aluminum sheet, and when the driving plate 32 continues to move downward, it drives the cutting knife 31 to cut the aluminum sheet. At this time, the first spring 36 is compressed, providing a downward pressure for the fixing plate 33 to firmly press the aluminum sheet.

[0037] Preferably, as Figures 4 - 6As shown in the figure, two fixing plates 33 that are matched with the second receiving groove 25 and are the farthest apart in distance are both penetrated with two second sliding channels, and a vacuum machine 312 and a vacuum chamber 37 communicated with the vacuum machine 312 are provided. The upper ends of the second sliding channels are coaxially provided with limiting rings 38. The limiting rings 38 are coaxially slidably fitted with vertical pipes 39. The lower ends of the vertical pipes 39 are coaxially communicated with suction cups 310 whose sizes match the second sliding channels. The upper ends of the vertical pipes 39 are communicated with vacuum pipes 311. The vacuum pipes 311 are all communicated to the vacuum chamber 37 on the corresponding fixing plate 33. Two lugs 313 are provided at the upper ends of the vertical pipes 39. Second springs 314 are provided between the lugs 313 and the corresponding limiting rings 38. During operation, during the downward movement of the two fixing plates 33 that are matched with the second receiving groove 25 and are the farthest apart in distance, the suction cups 310 first contact the aluminum sheet. During the continuous downward movement of the fixing plate 33, the second spring 314 is stretched to provide a downward pressure for the suction cups 310. When the fixing plate 33 contacts the aluminum sheet and extrudes it, the suction cups 310 enter the second sliding channels. After cutting is completed, the air pressure in the vacuum chamber 37 is reduced by the vacuum machine 312, so that the suction cups 310 suck the cut aluminum sheet waste. By moving the driving plate 32 that is matched with the second receiving groove 25, the aluminum sheet waste can be removed from the device. Such a design does not require manual removal of the cut aluminum sheet waste, further improving the automation degree of the device.

[0038] The foregoing are only the preferred embodiments of the present application and are not used to limit the present application. Obviously, those skilled in the art can make various changes and deformations to the present application without departing from the spirit and scope of the present application.

Claims

1. A fin cutting device, characterized in that, Comprising: A feeding plate (1), on both sides of the upper surface of which there are limit strips (11), and a first conveyor belt (12) parallel to the length direction of the feeding plate (1) is embedded in the upper surface of the feeding plate (1); A bearing plate (2), the upper surface of which is coplanarly connected to one end of the feeding plate (1), and a second conveyor belt (21) parallel to the length direction of the feeding plate (1) is embedded in the upper surface of the bearing plate (2). Above the second conveyor belt (21), a third conveyor belt (22) is arranged at intervals and the distance is adjustable; There are three cutting mechanisms (3), each of which includes a cutting knife (31), a driving plate (32) and two fixing plates (33). The upper end of the cutting knife (31) is connected to the driving plate (32), and the lower end is a cutting edge parallel to the upper surface of the feeding plate (1). The fixing plates (33) are respectively arranged outside the two side surfaces of the cutting knife (31) along the cutting edge direction of the cutting knife (31), and the driving plate (32) and the fixing plates (33) both move along the height direction of the feeding plate (1); On the upper surface of one end of the feeding plate (1), a first receiving groove (13) penetrating both sides of itself is opened along the width direction of the feeding plate (1). On the upper surface of the bearing plate (2), two moving grooves (23) are respectively arranged on both sides of the second conveyor belt (21). In each of the moving grooves (23), a moving plate (24) moving along the width direction of the feeding plate (1) is arranged. On the upper surface of each moving plate (24), a second receiving groove (25) penetrating both ends of itself is opened along the width direction of the feeding plate (1). The cutting knives (31) of the three cutting mechanisms (3) are respectively arranged at intervals directly above the first receiving groove (13) and the second receiving groove (25).

2. The fin cutting device according to claim 1, wherein, In each of the moving grooves (23), a first electric lead screw (26) cooperating with the moving plate (24) is arranged along the width direction of the feeding plate (1).

3. A fin cutting device according to claim 1, characterized in that, Outside both sides of the feeding plate (1), there are first support rods (14). The upper ends of the first support rods (14) are connected to the same first mounting plate (15). On the first mounting plate (15), a first air cylinder (16) is arranged along the height direction of the feeding plate (1). The driving shaft of the first air cylinder (16) is connected to a driving plate (32) matching the first receiving groove (13).

4. A fin cutting device according to claim 1, characterized in that, Outside both sides of the bearing plate (2), there are second support columns (27). The second support columns (27) are connected to the same second mounting plate (28). On the second mounting plate (28), two second electric lead screws (29) cooperating with cooperation blocks (210) are coaxially arranged along the length direction of the feeding plate (1). The cooperation blocks (210) are respectively connected to positioning plates (211). On each positioning plate (211), a third air cylinder (212) is arranged along the height direction of the feeding plate (1). The driving shafts of the third air cylinders (212) are respectively connected to driving plates (32) matching the second receiving grooves (25).

5. The fin cutting device according to claim 4, characterized in that, The second mounting plate (28) is connected to a top plate (213). On the top plate (213), a fourth air cylinder (214) is arranged along the height direction of the feeding plate (1). The driving shaft of the fourth air cylinder (214) is connected to a mounting frame (215) for loading the third conveyor belt (22).

6. The fin cutting device according to claim 1, wherein Both ends of the driving plate (32) are provided with two first sliding channels that penetrate in the height direction of the feeding plate (1). Slide rods (34) are slidably fitted in the first sliding channels. The upper ends of the two slide rods (34) located at the same end of the driving plate (32) are connected to the same limiting block (35), and the lower ends are respectively connected to the same end of the two fixing plates (33) that match the driving plate (32). First springs (36) are coaxially sleeved outside the slide rods (34). The upper ends of the first springs (36) are connected to the driving plate (32), and the lower ends are connected to the fixing plates (33).

7. A fin cutting device according to claim 1, characterized in that, Two fixing plates (33) that are matched with the second receiving groove (25) and are farthest apart are both provided with second sliding channels, a vacuum machine (312) and a vacuum chamber (37) communicated therewith. A limiting ring (38) is coaxially provided at the upper end of the second sliding channel. A vertical pipe (39) is slidably fitted coaxially with the limiting ring (38). A suction cup (310) with a size matching that of the second sliding channel is coaxially connected to the lower end of the vertical pipe (39). The upper end of the vertical pipe (39) is communicated with a vacuum pipe (311). The vacuum pipe (311) is communicated to the vacuum chamber (37) on the fixing plate (33) where it is located. A lug (313) is provided at the upper end of the vertical pipe (39). A second spring (314) is provided between the lug (313) and the limiting ring (38).

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