Heat exchanger plate-fin type stamping die convenient to demould
By introducing demolding and limiting components into the plate-fin stamping die of the heat exchanger, automated demolding is achieved, solving the problems of time-consuming manual demolding and damage to the plate fins, improving production efficiency and product quality stability, and adapting to different production requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG ELITE MARINE EQUIP & ENG
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-12
AI Technical Summary
Existing heat exchanger plate-fin stamping dies require a lot of time for manual demolding, making it difficult to keep up with the fast pace of automated production. Furthermore, manual operation can easily damage the plate-fin structure, affecting production efficiency and product quality stability.
The demolding assembly includes a built-in hole, a first return spring, a moving column, a magnetic column, and an electromagnet. Automated demolding is achieved through magnetic connection. Combined with the limiting assembly and the T-slot quick alignment structure, it can adapt to the production needs of different specifications of plate wings.
It accelerates demolding speed, aligns with the pace of automated production, improves production efficiency, avoids damage to the plate wings, ensures product quality, reduces manual contact and safety hazards, reduces reliance on worker skill and physical strength, and saves costs.
Smart Images
Figure CN224222508U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat exchanger plate-fin processing technology, and specifically relates to a heat exchanger plate-fin stamping die that is easy to demold. Background Technology
[0002] Plate-fin heat exchangers are highly efficient and compact heat exchange devices. Their core is constructed from multiple layers of thin metal plates, fins, and sealing strips stacked and welded together. The fins increase the heat exchange area, and baffles separate different media flow channels, allowing hot and cold fluids to flow in opposite or cross directions on both sides of the fins to achieve heat exchange. They feature high heat transfer efficiency, compact structure, and light weight, and can withstand high-temperature and high-pressure environments. They are widely used in aerospace, automotive, chemical, and refrigeration fields, and are key equipment for achieving miniaturization and high-efficiency heat exchange. The plate-fin heat exchanger stamping die is a high-precision stamping tool specifically designed for the core components of plate-fin heat exchangers. Through the coordinated action of the upper and lower dies, the plastic deformation of the metal sheet enables the efficient mass production of complex finned structures.
[0003] Announcement No. "CN217570465U" discloses an easy-to-install heat exchanger fin stamping die, belonging to the field of stamping equipment technology. This easy-to-install heat exchanger fin stamping die includes an upper die base and a lower die base. A moving die and a fixed die are movably connected to the upper and lower die bases, respectively. A groove is formed on the lower surface of the upper die base, and a slider is slidably connected within the groove and fixedly connected to the moving die. A lower die cavity is formed at the geometric center of the upper surface of the lower die base, and a fixed die is placed within the lower die cavity. First threaded holes are formed at the four corners of the adjacent ends of the upper and lower die bases. This design allows for easier alignment of the threaded holes between the stamping die and the connecting seat when processing heat exchanger fins of different sizes and specifications, making installation and disassembly safer, saving time and effort, and effectively improving the production efficiency of workpiece processing.
[0004] While the aforementioned utility model makes it easier to align the threaded holes between the stamping die and the connecting seat, and makes installation and disassembly safer, saving time and effort and effectively improving the production efficiency of workpiece processing, it requires manual demolding. Manual demolding often takes a lot of time, making it difficult to keep up with the fast pace of automated production, which can slow down the overall production process and delay the production progress. Moreover, it is difficult to accurately control the force and angle during manual operation, which may cause accidental damage to the structure of the plate fins, such as deformation or scratches, thereby affecting the performance and quality stability of the heat exchanger. Utility Model Content
[0005] In response to the problems mentioned in the background art, the purpose of this utility model is to provide a heat exchanger plate-fin stamping die that facilitates demolding. This solves the problem that manual demolding often takes a lot of time, making it difficult to keep up with the fast pace of automated production, which can slow down the overall production process and delay the production progress. Moreover, manual operation makes it difficult to accurately control the force and angle, which can cause accidental damage to the plate-fin structure, such as deformation and scratches, thereby affecting the performance and quality stability of the heat exchanger.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A heat exchanger plate-fin stamping die for easy demolding includes a base, a top plate fixedly connected to the top of the base via a fixed column, a cylinder mounted on the top of the top plate, a lifting seat fixedly connected to the telescopic end of the cylinder, a stamping block fixedly connected to the bottom of the lifting seat via a mounting plate, a fixed seat movably connected to the top of the base, a die fixedly connected to the top of the fixed seat, a mold groove opened on the top of the die, an installation groove opened at the bottom of the mold groove, an ejector plate slidably connected inside the installation groove, a demolding component installed at the bottom of the installation groove, and a limit component installed on the top of the fixed seat.
[0008] The demolding assembly includes an internal hole, a first return spring, a movable column, a magnetic column, and a through hole. The mounting groove has symmetrically arranged internal holes at its bottom. A first return spring is fixedly connected to the bottom of each internal hole, and a movable column is fixedly connected to the other end of the first return spring. The other end of the movable column is fixedly connected to the bottom of the ejector plate. A through hole is formed at the bottom of the mounting groove, penetrating the fixed base. A magnetic column is fixedly connected to the bottom of the ejector plate. An electromagnet is embedded in the top of the base, and the electromagnet and the magnetic column are magnetically connected. This design accelerates demolding, aligns with automated production rhythms, improves overall efficiency, prevents damage to the plate wings, ensures stable product quality, reduces manual contact, lowers safety hazards, reduces reliance on worker skill and physical strength, reduces production uncertainty, and saves costs.
[0009] As a preferred technical solution, the limiting component includes a cavity, a second return spring, a movable plate, a connecting post, a pull handle, and a limiting post. Assembly blocks are symmetrically fixedly connected to the top of the fixed base. A cavity is formed inside the assembly block, and a second return spring is fixedly connected to one side of the cavity. A movable plate is fixedly connected to the other end of the second return spring. A connecting post is fixedly connected to one side of the movable plate, and the other end of the connecting post extends out of the top of the assembly block and is fixedly connected to a pull handle. The second return spring is sleeved on the outside of the connecting post. A limiting post is fixedly connected to the other side of the movable plate, and the bottom end of the limiting post extends out of the bottom of the fixed base. Limiting holes are symmetrically formed on the top of the base. The limiting post and the limiting hole are plug-in connected, which can quickly adapt to the production needs of different specifications of plate wings, improve production flexibility, reduce downtime for mold changes, ensure production continuity, improve work efficiency, reduce the high skill requirements for workers, reduce operational errors, and indirectly save costs.
[0010] As a preferred technical solution, the top of the base is symmetrically provided with T-shaped grooves, and the bottom of the fixing seat is symmetrically fixed with T-shaped blocks. The T-blocks and T-grooves are slidably connected. The T-grooves on the top of the base and the T-blocks on the bottom of the fixing seat are slidably connected, which can be quickly installed and fixed, with a stable connection, easy and accurate alignment, improved disassembly and assembly efficiency, and reduced operation difficulty.
[0011] As a preferred technical solution, the bottom of the mounting plate is symmetrically fixed with positioning posts, and the top of the mold is symmetrically provided with positioning holes. The positioning posts and positioning holes are inserted into each other. The bottom positioning posts of the mounting plate are inserted into the top positioning holes of the mold, which can quickly and accurately align the parts and improve the accuracy of stamping.
[0012] In summary, this utility model has the following main advantages:
[0013] First, in this utility model, the fixed base is combined with the mold and the base. When the electromagnet is activated, the electromagnet and the magnetic column are magnetically connected, causing the magnetic column to drive the ejector plate to descend. At the same time, the ejector plate drives the moving column to press against the first return spring, which is compressed. When the stamping work is completed, the electromagnet is turned off, the electromagnet and the magnetic column are no longer magnetically connected, the first return spring is reset, and the moving column rebounds to drive the ejector plate to eject the stamped part inside the mold groove. This can speed up the demolding speed, match the rhythm of automated production, improve overall efficiency, avoid damage to the plate fins, ensure stable product quality, reduce manual contact, reduce safety hazards, reduce dependence on worker skill and physical strength, reduce production uncertainty, and save costs.
[0014] Secondly, in this utility model, pulling the handle upward causes the connecting column to move the moving plate and the limiting column. The limiting column retracts into the cavity, and the moving plate presses against the second return spring. Then, the fixed seat, along with the mold, is merged with the top of the base, allowing the T-shaped block to slide into the T-slot. After pushing the mold directly under the stamping block, the handle is released, the second return spring resets, and the moving plate rebounds, causing the limiting column to pop out. The limiting column is then inserted and fixed into the limiting hole. This allows for quick adaptation to the production needs of different specifications of plate wings, improving production flexibility. It also reduces downtime for changing molds, ensuring production continuity, improving work efficiency, reducing the high skill requirements for workers, reducing operational errors, and indirectly saving costs. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;
[0017] Figure 3 This is a cross-sectional three-dimensional structural schematic diagram of the present invention;
[0018] Figure 4 This is the utility model Figure 3 Enlarged view of part A;
[0019] Figure 5 This is the utility model Figure 3 Enlarged view of part B.
[0020] Reference numerals: 1. Base; 2. Fixed column; 3. Top plate; 4. Cylinder; 5. Lifting seat; 6. Mounting plate; 7. Stamping block; 8. Fixed seat; 9. Mold; 10. Mold groove; 11. T-block; 12. T-slot; 13. Mounting groove; 14. Ejector plate; 15. Demolding assembly; 151. Internal hole; 152. First return spring; 153. Moving column; 154. Magnetic column; 155. Through hole; 16. Electromagnet; 19. Assembly block; 20. Limiting assembly; 201. Cavity; 202. Second return spring; 203. Moving plate; 204. Connecting column; 205. Pull handle; 206. Limiting column; 21. Limiting hole; 22. Positioning column; 23. Positioning hole. Detailed Implementation
[0021] Example
[0022] refer to Figures 1 to 5The heat exchanger plate-fin stamping die described in this embodiment includes a base 1, a top plate 3 fixedly connected to the top of the base 1 via a fixed column 2, a cylinder 4 mounted on the top of the top plate 3, a lifting seat 5 fixedly connected to the telescopic end of the cylinder 4, a stamping block 7 fixedly connected to the bottom of the lifting seat 5 via an mounting plate 6, a fixed seat 8 movably connected to the top of the base 1, a die 9 fixedly connected to the top of the fixed seat 8, a die groove 10 opened on the top of the die 9, an installation groove 13 opened at the bottom of the die groove 10, an ejector plate 14 slidably connected inside the installation groove 13, a demolding component 15 installed at the bottom of the installation groove 13, and a limit component 20 installed on the top of the fixed seat 8.
[0023] The demolding assembly 15 includes an internal hole 151, a first return spring 152, a movable column 153, a magnetic column 154, and a through hole 155. The mounting groove 13 has symmetrically arranged internal holes 151 at its bottom. The first return spring 152 is fixedly connected to the bottom of the internal hole 151, and the movable column 153 is fixedly connected to the other end of the first return spring 152. The other end of the movable column 153 is fixedly connected to the bottom of the ejector plate 14. The mounting groove 13 has a through hole 155 at its bottom, which penetrates the fixing base 8. The magnetic column 154 is fixedly connected to the bottom of the ejector plate 14. An electromagnet 16 is embedded in the top of the base 1. Electromagnet 16 and magnetic column 154 are magnetically connected. When the fixed base 8, mold 9 and base 1 are combined, electromagnet 16 is activated and magnetic connection is established between electromagnet 16 and magnetic column 154. This causes magnetic column 154 to drive ejector plate 14 to descend. At the same time, ejector plate 14 drives moving column 153 to press against first return spring 152. First return spring 152 is compressed. When the stamping operation is completed, electromagnet 16 is turned off, and magnetic connection between electromagnet 16 and magnetic column 154 ends. First return spring 152 returns to its original position, and moving column 153 rebounds, causing ejector plate 14 to eject the stamped part inside mold groove 10.
[0024] refer to Figure 5The limiting assembly 20 includes a cavity 201, a second return spring 202, a movable plate 203, a connecting post 204, a handle 205, and a limiting post 206. A mounting block 19 is symmetrically fixedly connected to the top of the fixed base 8. A cavity 201 is formed inside the mounting block 19. A second return spring 202 is fixedly connected to one side of the cavity 201. A movable plate 203 is fixedly connected to the other end of the second return spring 202. A connecting post 204 is fixedly connected to one side of the movable plate 203. A handle 205 is fixedly connected to the other end of the connecting post 204, extending from the top of the mounting block 19. The second return spring 202 is sleeved on the outside of the connecting post 204. A limiting post 206 is fixedly connected to the other side of the movable plate 203. Positioning post 206, the bottom end of which extends out of the bottom of the fixing seat 8, and the top of the base 1 is symmetrically provided with limiting holes 21. The limiting post 206 and the limiting hole 21 are inserted into each other. Pulling the handle 205 upward causes the connecting post 204 to move the moving plate 203 and the limiting post 206. The limiting post 206 retracts into the cavity 201, and the moving plate 203 presses against the second return spring 202. Then, the fixing seat 8 together with the mold 9 is merged with the top of the base 1. After pushing the mold 9 directly under the stamping block 7, the handle 205 is released, the second return spring 202 is reset, and the moving plate 203 rebounds, causing the limiting post 206 to pop out. The limiting post 206 is then inserted into and fixed with the limiting hole 21.
[0025] refer to Figure 1 The base 1 has symmetrical T-shaped grooves 12 on the top, and the fixed seat 8 has symmetrical T-shaped blocks 11 fixedly connected to the bottom. The T-shaped blocks 11 and the T-shaped grooves 12 are slidably connected. When the limiting post 206 retracts into the cavity 201, the fixed seat 8 together with the mold 9 is merged with the top of the base 1, so that the T-shaped blocks 11 and the T-shaped grooves 12 are slidably connected.
[0026] refer to Figures 1 to 3 The bottom of the mounting plate 6 is symmetrically fixed with positioning pins 22, and the top of the mold 9 is symmetrically provided with positioning holes 23. The positioning pins 22 and the positioning holes 23 are inserted into each other. When the cylinder 4 is started, the lifting seat 5 is controlled to drive the stamping block 7 to descend through the mounting plate 6. The stamping block 7 stamps the stamping parts inside the mold groove 10, and at the same time, the positioning pins 22 are inserted into the positioning holes 23.
[0027] Operating principle and advantages: First, pull the handle 205 upwards, causing the connecting post 204 to move the moving plate 203 and the limiting post 206. The limiting post 206 retracts into the cavity 201, and the moving plate 203 presses against the second return spring 202. Then, the fixed base 8, together with the mold 9, is merged with the top of the base 1, so that the T-shaped block 11 slides into the T-shaped groove 12. After pushing the mold 9 directly under the stamping block 7, release the handle 205. The second return spring 202 returns to its original position, and the moving plate 203 rebounds, causing the limiting post 206 to pop out. The limiting post 206 is then inserted and fixed into the limiting hole 21. Then, the electromagnet 16 is activated, and the electromagnet 16 and... The magnetic column 154 is magnetically connected, causing the magnetic column 154 to drive the ejector plate 14 to descend. At the same time, the ejector plate 14 drives the moving column 153 to press against the first return spring 152. The first return spring 152 is compressed, and the cylinder 4 is activated. When the lifting seat 5 drives the stamping block 7 to descend through the mounting plate 6, the stamping block 7 stamps the stamping part inside the mold groove 10. At the same time, the positioning column 22 is inserted into the positioning hole 23. When the stamping work is completed, the electromagnet 16 is turned off, the electromagnet 16 and the magnetic column 154 are no longer magnetically connected, the first return spring 152 is reset, and the moving column 153 rebounds, driving the ejector plate 14 to eject the stamping part inside the mold groove 10.
[0028] This invention can accelerate the demolding speed, match the rhythm of automated production, improve overall efficiency, avoid damage to the plate wings, ensure stable product quality, reduce manual contact, reduce safety hazards, reduce reliance on worker skill and physical strength, reduce production uncertainty, and save costs.
Claims
1. A heat exchanger plate-fin stamping die for easy demolding, comprising a base (1), characterized in that: The base (1) is fixedly connected to a top plate (3) via a fixed column (2). A cylinder (4) is installed on the top of the top plate (3). A lifting seat (5) is fixedly connected to the telescopic end of the cylinder (4). A stamping block (7) is fixedly connected to the bottom of the lifting seat (5) via an mounting plate (6). A fixed seat (8) is movably connected to the top of the base (1). A mold (9) is fixedly connected to the top of the fixed seat (8). A mold groove (10) is opened on the top of the mold (9). An installation groove (13) is opened at the bottom of the mold groove (10). An ejector plate (14) is slidably connected inside the installation groove (13). A demolding component (15) is installed at the bottom of the installation groove (13). A limit component (20) is installed on the top of the fixed seat (8). The demolding assembly (15) includes an internal hole (151), a first reset spring (152), a moving column (153), a magnetic column (154), and a through hole (155). The mounting groove (13) has an internal hole (151) symmetrically opened at the bottom. The first reset spring (152) is fixedly connected to the bottom of the internal hole (151). The moving column (153) is fixedly connected to the other end of the first reset spring (152). The other end of the moving column (153) is fixedly connected to the bottom of the ejector plate (14). The mounting groove (13) has a through hole (155) at the bottom. The through hole (155) passes through the fixed seat (8). The magnetic column (154) is fixedly connected to the bottom of the ejector plate (14).
2. The heat exchanger plate-fin stamping die for easy demolding according to claim 1, characterized in that: An electromagnet (16) is embedded in the top of the base (1), and the electromagnet (16) is magnetically connected to the magnetic column (154).
3. The heat exchanger plate-fin stamping die for easy demolding according to claim 1, characterized in that: The limiting component (20) includes a cavity (201), a second return spring (202), a moving plate (203), a connecting post (204), a handle (205), and a limiting post (206). The top of the fixed base (8) is symmetrically fixedly connected to an assembly block (19). The assembly block (19) has a cavity (201) inside. The second return spring (202) is fixedly connected to one side of the cavity (201). The moving plate (203) is fixedly connected to the other end of the second return spring (202). The connecting post (204) is fixedly connected to one side of the moving plate (203). The other end of the connecting post (204) extends out of the top of the assembly block (19) and is fixedly connected to a handle (205). The second return spring (202) is sleeved on the outside of the connecting post (204). The limiting post (206) is fixedly connected to the other side of the moving plate (203). The bottom end of the limiting post (206) extends out of the bottom of the fixed base (8).
4. The heat exchanger plate-fin stamping die for easy demolding according to claim 3, characterized in that: The base (1) has symmetrically provided limiting holes (21) on its top, and the limiting post (206) is inserted into the limiting hole (21).
5. A heat exchanger plate-fin stamping die for easy demolding according to claim 1, characterized in that: The base (1) has symmetrical T-shaped grooves (12) on its top, and the fixed base (8) has symmetrical T-shaped blocks (11) fixedly connected to its bottom. The T-shaped blocks (11) and the T-shaped grooves (12) are slidably connected.
6. The heat exchanger plate-fin stamping die for easy demolding according to claim 1, characterized in that: The mounting plate (6) is symmetrically fixedly connected to the bottom of the positioning column (22), and the mold (9) is symmetrically provided with positioning holes (23) on the top. The positioning column (22) and the positioning hole (23) are inserted into each other.