Heat exchanger aluminum fin stamping die convenient to demould

Abstract

The utility model relates to the technical field of heat exchanger production, and discloses a heat exchanger aluminum fin stamping die convenient to demould, which comprises a working table, a first limiting rod and a support column are fixedly arranged on the top surface of the working table, a top plate is fixedly arranged on the top surface of the support column, and a hydraulic cylinder is fixedly arranged on the top surface of the top plate. An output shaft of the hydraulic cylinder is connected with an upper die plate, a second limiting rod and a spring are installed on the bottom face of the upper die plate, a limiting column is installed at the bottom end of the second limiting rod, a pressing plate is slidably installed on the outer side face of the second limiting rod, a lower die groove is formed in the workbench, and a first through hole and a second through hole are formed in the lower die groove. An air cylinder is installed on the bottom face of the workbench. The hydraulic cylinder is started, the output shaft of the hydraulic cylinder can drive the upper die plate and the pressing plate to move in the vertical direction, the four first limiting rods can effectively limit the moving positions of the upper die plate and the pressing plate, and the stamping accuracy and stability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger production, in particular to a heat exchanger aluminum fin stamping die which is easy to demould. Background Art

[0002] A heat exchanger is a device that can effectively transfer heat energy. Its basic principle is to isolate two media of different temperatures in some way so that heat can be transferred from the high-temperature medium to the low-temperature medium, thereby achieving the purpose of heating or cooling. Aluminum fins are a key component of heat exchangers. They are usually made of aluminum materials and formed into a certain geometric shape on copper tubes or aluminum tubes to increase the heat transfer area and improve the heat exchange efficiency. In the production process of aluminum fins, it is usually necessary to stamp aluminum foil, aluminum strip or other forms of aluminum products to form the required fin shape to meet the functional requirements of the heat exchanger. In order to prevent the aluminum fins from being damaged during the demolding process, while improving production efficiency, reducing costs and ensuring product quality, a heat exchanger aluminum fin stamping die that is easy to demold is proposed.

[0003] According to the search, the Chinese patent document, announcement number: CN218252474U, discloses a mold device that facilitates the demoulding of aluminum stamping parts. The output shafts of two electric push rods respectively drive the two connecting plates to move in opposite directions, so that the two movable plates are located below the movable plate, and the connecting plates are used to drive the movable plate to move upward, and the aluminum stamping parts are demoulded using the ejector pin to achieve the purpose of rapid demoulding. However, in actual use, the device cannot fix the position of the workpiece when placing it in the lower mold, so it may cause certain deviations during stamping, which in turn affects the quality of the product and the accuracy of the device; in addition, the device needs to move the two connecting plates to the bottom of the movable plate before demoulding, which not only makes the single working time longer and reduces production efficiency, but also has a certain impact on the continuity of production. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a heat exchanger aluminum fin stamping die that is easy to demould, has the advantages of stable and accurate demoulding, fast demoulding, and improved work efficiency, and solves the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger aluminum fin stamping die that is easy to demold, comprising a workbench, a first limit rod and a pillar are fixedly installed on the top surface of the workbench, a top plate is fixedly installed on the top surface of the pillar, a hydraulic cylinder is fixedly installed on the top surface of the top plate, the output shaft of the hydraulic cylinder is fixedly connected to an upper mold plate, a second limit rod and a spring are fixedly installed on the bottom surface of the upper mold plate, a limit column is fixedly installed on the bottom end of the second limit rod, a pressure plate is slidably installed on the outer side surface of the second limit rod, a lower mold groove is fixedly installed inside the workbench, a first through hole and a second through hole are opened inside the lower mold groove, a cylinder is fixedly installed on the bottom surface of the workbench, and a ejector pin is fixedly connected to the output shaft of the cylinder.

[0008] Preferably, the number of the first limiting rods is four, and the upper mold plate and the pressing plate are both slidably mounted on the outer sides of the four first limiting rods.

[0009] Through the above technical solution, when the hydraulic cylinder is started, the output shaft of the hydraulic cylinder can drive the upper mold plate and the pressure plate to move in the vertical direction, and the four first limit rods can effectively limit their moving position, thereby improving the accuracy and stability of the stamping of the device.

[0010] Preferably, the number of the second limiting rods and the number of the springs are both four, and the ends of the four springs away from the upper mold plate are fixedly connected to the top surface of the pressing plate.

[0011] Through the above technical solution, when the hydraulic cylinder drives the upper mold plate and the pressure plate to move downward, the pressure plate will first contact the workpiece, and then the hydraulic cylinder will continue to drive the upper mold plate to move downward and stamp the workpiece. At the same time, the upper mold plate approaches the pressure plate to compress the four springs. Therefore, the force provided by the spring can not only effectively make the pressure plate press and fix the workpiece, but also the spring can play a buffering role in the stamping process, thereby improving the overall practicality of the device.

[0012] Preferably, there are four limiting columns, and the top surface of the workbench is provided with four grooves, and the four limiting columns are respectively installed in the inside of the four grooves.

[0013] Through the above technical solution, the four limit columns can effectively limit the position of the pressure plate to prevent it from falling off, etc. In addition, when the hydraulic cylinder drives the upper mold plate and the pressure plate to move downward, the four limit columns and the second limit rod can be moved to the inside of the four grooves respectively, thereby ensuring the stability of the stamping process and improving the overall practicality.

[0014] Preferably, there are a plurality of the first through holes, and a plurality of punches are provided on the bottom surface of the upper mold plate, the plurality of punches are respectively installed inside the plurality of first through holes, and a collection box is provided directly below the plurality of first through holes.

[0015] Through the above technical solution, when the hydraulic cylinder drives the upper mold plate to punch the workpiece, multiple punches can punch the workpiece and move to the inside of multiple first through holes, so that the waste chips generated by the stamping can be effectively ejected from the first through holes and fall into the inside of the collection box, thereby effectively completing the collection of waste chips and improving the overall practicality of the device.

[0016] Preferably, the number of the second through holes, the number of the cylinders and the number of the ejector pins are all four, and the four ejector pins are respectively and correspondingly installed inside the four second through holes.

[0017] Through the above technical solution, when the four cylinders are started after the stamping of the workpiece is completed, the four cylinders can respectively drive the four ejectors to eject from the inside of the four second through holes, thereby effectively ejecting the workpiece from the lower mold groove, thereby improving the overall convenience of the device.

[0018] Compared with the prior art, the utility model provides a heat exchanger aluminum fin stamping die that is easy to demould, and has the following beneficial effects:

[0019] 1. The utility model starts the hydraulic cylinder, and the output shaft of the hydraulic cylinder can drive the upper mold plate and the pressure plate to move in the vertical direction. The four first limit rods can effectively limit the moving position, thereby improving the accuracy and stability of the device stamping. During its downward movement, the pressure plate will first contact the workpiece, and then the hydraulic cylinder will continue to drive the upper mold plate to move downward and stamp the workpiece. At the same time, the upper mold plate will approach the pressure plate to compress the four springs. Therefore, the force provided by the spring can not only effectively enable the pressure plate to press and fix the workpiece, but also the spring can play a buffering role in the stamping process, thereby improving the overall practicality of the device.

[0020] 2. The utility model can punch the workpiece through multiple punches and move them to the inside of multiple first through holes, so that the waste chips generated by the stamping can be effectively ejected from the first through holes and fall into the inside of the collection box, effectively completing the collection of the waste chips; after the stamping is completed, the four cylinders are started, and the four cylinders can respectively drive the four ejectors to eject from the inside of the four second through holes, thereby effectively ejecting the workpiece from the lower mold groove, improving the overall convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a front cross-sectional schematic diagram of the workbench and other parts of the utility model structure;

[0023] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the mold groove and other parts under the structure of the utility model.

[0024] Among them: 1. workbench; 2. first limit rod; 3. support; 4. top plate; 5. hydraulic cylinder; 6. upper mold plate; 7. second limit rod; 8. spring; 9. limit column; 10. pressure plate; 11. lower mold groove; 12. first through hole; 13. second through hole; 14. cylinder; 15. ejector pin; 16. groove; 17. punch; 18. collection box. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3 A heat exchanger aluminum fin stamping die that is easy to demould comprises a workbench 1, a first limiting rod 2 and a pillar 3 are fixedly installed on the top surface of the workbench 1, a top plate 4 is fixedly installed on the top surface of the pillar 3, a hydraulic cylinder 5 is fixedly installed on the top surface of the top plate 4, an output shaft of the hydraulic cylinder 5 is fixedly connected to an upper mold plate 6, a second limiting rod 7 and a spring 8 are fixedly installed on the bottom surface of the upper mold plate 6, a limiting column 9 is fixedly installed on the bottom end of the second limiting rod 7, a pressing plate 10 is slidably installed on the outer side surface of the second limiting rod 7, a lower mold groove 11 is fixedly installed inside the workbench 1, a first through hole 12 and a second through hole 13 are opened inside the lower mold groove 11, a cylinder 14 is fixedly installed on the bottom surface of the workbench 1, and an ejector pin 15 is fixedly connected to the output shaft of the cylinder 14.

[0027] Specifically, there are four first limiting rods 2, and the upper mold plate 6 and the pressing plate 10 are slidably mounted on the outer sides of the four first limiting rods 2. The advantage is that, through this structure, when the hydraulic cylinder 5 is started, the output shaft of the hydraulic cylinder 5 can drive the upper mold plate 6 and the pressing plate 10 to move in the vertical direction, and the four first limiting rods 2 can effectively limit the position of their movement, thereby improving the accuracy and stability of the device stamping.

[0028] Specifically, the number of the second limiting rods 7 and the number of the springs 8 are both four, and the ends of the four springs 8 away from the upper mold plate 6 are fixedly connected to the top surface of the pressing plate 10. The advantage is that, through this structure, when the hydraulic cylinder 5 drives the upper mold plate 6 and the pressing plate 10 to move downward, the pressing plate 10 will first contact the workpiece, and then the hydraulic cylinder 5 will continue to drive the upper mold plate 6 to move downward and perform stamping processing on the workpiece. At the same time, the upper mold plate 6 will approach the pressing plate 10 to compress the four springs 8. Therefore, the force provided by the springs 8 can not only effectively make the pressing plate 10 press and fix the workpiece, but also the springs 8 can play a buffering role in the stamping process, thereby improving the overall practicality of the device.

[0029] Specifically, there are four limit columns 9, and the top surface of the workbench 1 is provided with four grooves 16, and the four limit columns 9 are respectively installed in the four grooves 16. The advantage is that the four limit columns 9 can effectively limit the position of the pressing plate 10 to prevent it from falling off, etc., through this structure. In addition, when the hydraulic cylinder 5 drives the upper mold plate 6 and the pressing plate 10 to move downward, the four limit columns 9 and the second limit rod 7 can be moved to the inside of the four grooves 16 respectively, thereby ensuring the stability of the stamping process and improving the overall practicality.

[0030] Specifically, there are multiple first through holes 12, and the bottom surface of the upper die plate 6 is provided with multiple punches 17, which are respectively installed inside the multiple first through holes 12, and a collection box 18 is provided directly below the multiple first through holes 12. The advantage is that, through this structure, when the hydraulic cylinder 5 drives the upper die plate 6 to punch the workpiece, the multiple punches 17 can punch the workpiece and move to the inside of the multiple first through holes 12, so that the waste chips generated by the punching can be effectively ejected from the first through holes 12 and fall into the inside of the collection box 18, effectively completing the collection of waste chips and improving the overall practicality of the device.

[0031] Specifically, the number of the second through holes 13, the cylinders 14 and the ejector pins 15 is four, and the four ejector pins 15 are respectively installed in the four second through holes 13. The advantage is that, through this structure, when the four cylinders 14 are started after the stamping of the workpiece is completed, the four cylinders 14 can respectively drive the four ejector pins 15 to be ejected from the inside of the four second through holes 13, thereby effectively ejecting the workpiece from the lower mold groove 11, thereby improving the convenience of the device as a whole.

[0032] When in use, the hydraulic cylinder 5 is started, and the output shaft of the hydraulic cylinder 5 can drive the upper mold plate 6 and the pressing plate 10 to move in the vertical direction. The four first limit rods 2 can effectively limit the position of their movement, thereby improving the accuracy and stability of the device's stamping. During its downward movement, the pressing plate 10 will first contact the workpiece, and then the hydraulic cylinder 5 will continue to drive the upper mold plate 6 to move downward and perform stamping on the workpiece. At the same time, the upper mold plate 6 approaches the pressing plate 10 to compress the four springs 8. Therefore, the force provided by the springs 8 can not only effectively enable the pressing plate 10 to press and fix the workpiece, At the same time, the spring 8 can also play a buffering role in the stamping process, thereby improving the overall practicality of the device; thereafter, multiple punches 17 can punch the workpiece and move to the inside of multiple first through holes 12, so that the waste chips generated by the stamping can be effectively ejected from the first through holes 12 and fall into the inside of the collection box 18, thereby effectively completing the collection of the waste chips; after the stamping is completed, the four cylinders 14 are started, and the four cylinders 14 can respectively drive the four ejectors 15 to eject from the inside of the four second through holes 13, thereby effectively ejecting the workpiece from the lower mold groove 11, thereby improving the overall convenience of the device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger aluminum fin stamping die that is easy to demould, comprising a workbench (1), characterized in that: A first limiting rod (2) and a support (3) are fixedly mounted on the top surface of the workbench (1); a top plate (4) is fixedly mounted on the top surface of the support (3); a hydraulic cylinder (5) is fixedly mounted on the top surface of the top plate (4); an output shaft of the hydraulic cylinder (5) is fixedly connected to an upper mold plate (6); a second limiting rod (7) and a spring (8) are fixedly mounted on the bottom surface of the upper mold plate (6); a limiting column (9) is fixedly mounted on the bottom end of the second limiting rod (7); a pressure plate (10) is slidably mounted on the outer side surface of the second limiting rod (7); a lower mold groove (11) is fixedly mounted inside the workbench (1); a first through hole (12) and a second through hole (13) are provided inside the lower mold groove (11); a cylinder (14) is fixedly mounted on the bottom surface of the workbench (1); an output shaft of the cylinder (14) is fixedly connected to an ejector pin (15).

2. The heat exchanger aluminum fin stamping die that is easy to demould according to claim 1 is characterized in that: The number of the first limiting rods (2) is four, and the upper mold plate (6) and the pressing plate (10) are both slidably mounted on the outer sides of the four first limiting rods (2).

3. The heat exchanger aluminum fin stamping die that is easy to demould according to claim 1 is characterized in that: The number of the second limiting rods (7) and the number of the springs (8) are both four, and the ends of the four springs (8) away from the upper mold plate (6) are fixedly connected to the top surface of the pressing plate (10).

4. The heat exchanger aluminum fin stamping die that is easy to demould according to claim 1 is characterized in that: The number of the limiting columns (9) is four, and the top surface of the workbench (1) is provided with four grooves (16), and the four limiting columns (9) are respectively installed in the inside of the four grooves (16).

5. The heat exchanger aluminum fin stamping die that is easy to demould according to claim 1 is characterized in that: There are a plurality of first through holes (12), and a plurality of punches (17) are provided on the bottom surface of the upper mold plate (6). The plurality of punches (17) are respectively installed inside the plurality of first through holes (12), and a collection box (18) is provided directly below the plurality of first through holes (12).

6. The heat exchanger aluminum fin stamping die that is easy to demould according to claim 1 is characterized in that: The number of the second through hole (13), the cylinder (14) and the ejector pin (15) is four, and the four ejector pins (15) are respectively installed inside the four second through holes (13).

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