Multi-section type cooling structure of high-strength steel stamping die

Abstract

The utility model belongs to the technical field of steel machining, and particularly discloses a multi-section type cooling structure of a high-strength steel stamping die. The multi-section type cooling structure comprises a machine body and a die cavity, the die cavity is located on one side of the machine body, a cavity is formed in the machine body, and a cooling assembly is arranged in the cavity; the first cooling pipe, the second cooling pipe and the third cooling pipe which are arranged in parallel of the cooling assembly are used for cooling the periphery of the mold in a segmented mode, personalized cooling can be carried out according to actual cooling requirements of different parts of the mold, cooling pertinence and effectiveness are greatly improved, it is guaranteed that all the parts of the mold can be properly cooled, and the mold cooling efficiency is improved. Meanwhile, the bottom of the mold is specifically cooled through the round pipe, it is ensured that the bottom is fully cooled, the cooling effect of the bottom of the mold can be fully guaranteed, the situation that the service life of the mold is shortened due to insufficient cooling of the bottom is avoided, and therefore the cooling effect and stability of the mold are overall improved; and the service life of the die is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of steel processing, and more specifically, to a multi-stage cooling structure for a high-strength steel stamping die. Background Art

[0002] During the production process of a high-strength steel stamping die, generally, the heated high-strength steel material is placed in the die, and pressure is applied through a stamping device to form the material within the die. In this process, cooling plays a crucial role. The general cooling method is to use a single cooling channel, and the temperature of the die is reduced by circulating a coolant. The coolant enters the die from the inlet, flows through the cooling channel, and then exits from the outlet, taking away the heat generated by the die during the stamping process.

[0003] In the cooling process of the existing high-strength steel stamping die, the cooling effect of the single cooling channel is limited, and it is difficult to quickly and evenly reduce the temperature of different parts of the die. This will cause the local temperature of the die to be too high, affecting the quality and dimensional accuracy of the stamping parts, and may even cause damage such as deformation and cracks in the die. Moreover, the single cooling method cannot be flexibly adjusted according to different stamping processes and material characteristics. Summary of the Utility Model

[0004] In order to solve the above problems, the present application provides a multi-stage cooling structure for a high-strength steel stamping die.

[0005] The multi-stage cooling structure for a high-strength steel stamping die provided by the present application adopts the following technical solutions:

[0006] A multi-stage cooling structure for a high-strength steel stamping die includes a body and a die cavity. The die cavity is located on one side of the body. A cavity is formed inside the body, and a cooling assembly is arranged inside the cavity.

[0007] The cooling assembly includes a first cooling pipe, a second cooling pipe, a third cooling pipe, and a circular pipe. The first cooling pipe, the second cooling pipe, and the third cooling pipe are used for segmentally cooling the four sides of the die, and the circular pipe is used for cooling the bottom of the die.

[0008] Further, the first cooling pipe, the second cooling pipe, and the third cooling pipe are arranged in parallel. A plurality of first connecting pipes are arranged inside the first cooling pipe, the second cooling pipe, and the third cooling pipe. One of the first connecting pipes is communicated with the first cooling pipe, the second cooling pipe, and the third cooling pipe.

[0009] Further, a first flow control valve and a second flow control valve are arranged inside the first connecting pipe. The first flow control valve is located between the first cooling pipe and the second cooling pipe, and the second flow control valve is located between the second cooling pipe and the third cooling pipe.

[0010] Furthermore, the number of circular tubes is set to be multiple, the diameters of the multiple circular tubes gradually increase from inside to outside, multiple second connecting tubes are connected to the inside of the multiple circular tubes, and one end of each second connecting tube is connected to the third cooling tube.

[0011] Furthermore, two circulating pumps are provided on one side of the mold cavity. One end of one circulating pump is connected to the first cooling tube, and one end of the other circulating pump is connected to the third cooling tube.

[0012] Through the above technical solution, segmented cooling can be performed on the periphery of the mold, and personalized cooling can be carried out according to the actual cooling requirements of different parts of the mold, greatly improving the pertinence and effectiveness of cooling.

[0013] Furthermore, a cooling box is provided on the side of the mold cavity away from the circulating pump. Two regulating tubes are provided inside the cooling box. One regulating tube is connected to the first cooling tube, and the other regulating tube is connected to the third cooling tube.

[0014] Furthermore, a plurality of heat dissipation fins are provided on the outer walls of the two regulating tubes, and the plurality of heat dissipation fins are evenly distributed in the horizontal direction.

[0015] Through the above technical solution, secondary cooling of the passing coolant can be performed. The heat dissipation fins increase the contact area with the air, efficiently dissipate the heat in the coolant, and improve the cooling effect.

[0016] Furthermore, a plurality of mounting ring buckles are sleeved on the outer walls of the first cooling tube and the third cooling tube. A fixing seat is provided on one side of each mounting ring buckle, and each fixing seat is welded to the inner wall of the mold cavity.

[0017] Through the above technical solution, the stability of the cooling tube can be enhanced, the position of the cooling tube can be fixed, and its shaking or displacement during the operation of the cooling system can be prevented.

[0018] In summary, the present application includes at least the following beneficial technical effects:

[0019] (1) In the present application, the first cooling tube, the second cooling tube, and the third cooling tube arranged in parallel by the cooling assembly perform segmented cooling on the periphery of the mold. Personalized cooling can be carried out according to the actual cooling requirements of different parts of the mold, greatly improving the pertinence and effectiveness of cooling, ensuring that each part of the mold can be cooled appropriately, avoiding affecting the performance and quality of the mold due to improper cooling. At the same time, the circular tubes perform targeted cooling on the bottom of the mold to ensure sufficient cooling at the bottom, fully guaranteeing the cooling effect at the bottom of the mold, preventing insufficient bottom cooling from shortening the service life of the mold, thereby improving the cooling effect and stability of the mold as a whole and extending the service life of the mold;

[0020] (2) By providing the regulating pipe and the heat sink inside the cooling box in this application, the coolant passing through can be cooled twice. The heat sink increases the contact area with the air, efficiently dissipates the heat in the coolant, improves the cooling effect, and ensures that the coolant continuously provides effective cooling for the mold. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of this application;

[0022] Figure 2 It is a schematic diagram of the internal structure of the mold cavity of this application;

[0023] Figure 3 It is a schematic diagram of the overall structure of the first cooling pipe, the second cooling pipe and the third cooling pipe of this application;

[0024] Figure 4 For this application Figure 2 Enlarged view of the structure at point A;

[0025] Figure 5 It is a plan view of the internal structure of the mold cavity of this application.

[0026] Description of the reference numerals: 1, body; 2, mold cavity; 3, first cooling pipe; 4, second cooling pipe; 5, third cooling pipe; 6, first connecting pipe; 7, first flow control valve; 8, second flow control valve; 9, circular pipe; 10, second connecting pipe; 11, circulation pump; 12, cooling box; 13, regulating pipe; 14, heat sink; 15, mounting ring buckle; 16, fixing seat. Detailed Description of the Preferred Embodiments

[0027] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application; obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0028] Referring to Figures 1 - 5 , a multi-stage cooling structure for a high-strength steel stamping die, including a body 1 and a mold cavity 2. The mold cavity 2 is located on one side of the body 1. A cavity is provided inside the body 1, and a cooling assembly is provided inside the cavity;

[0029] The cooling assembly includes a first cooling pipe 3, a second cooling pipe 4, a third cooling pipe 5 and a circular pipe 9. The first cooling pipe 3, the second cooling pipe 4 and the third cooling pipe 5 are used for segmental cooling of the four sides of the mold, and the circular pipe 9 is used for cooling the bottom of the mold.

[0030] Referring to Figures 1 - 5, the first cooling pipe 3, the second cooling pipe 4 and the third cooling pipe 5 are arranged in parallel. A plurality of first connecting pipes 6 are provided inside the first cooling pipe 3, the second cooling pipe 4 and the third cooling pipe 5. One of the first connecting pipes 6 is connected and communicated with the first cooling pipe 3, the second cooling pipe 4 and the third cooling pipe 5. A first flow control valve 7 and a second flow control valve 8 are provided inside the first connecting pipe 6. The first flow control valve 7 is located between the first cooling pipe 3 and the second cooling pipe 4, and the second flow control valve 8 is located between the second cooling pipe 4 and the third cooling pipe 5. The number of circular pipes 9 is set to be multiple. The diameters of the multiple circular pipes 9 gradually increase from inside to outside. A plurality of second connecting pipes 10 are connected and communicated inside the multiple circular pipes 9. One end of each second connecting pipe 10 is connected and communicated with the third cooling pipe 5. Two circulating pumps 11 are provided on one side of the mold cavity 2. One end of one circulating pump 11 is connected and communicated with the first cooling pipe 3, and one end of the other circulating pump 11 is connected and communicated with the third cooling pipe 5.

[0031] The segmented cooling can be realized through the cooling assembly. The specific operation method is as follows: First, the first cooling pipe 3, the second cooling pipe 4 and the third cooling pipe 5 arranged in parallel jointly undertake the segmented cooling task of the periphery of the mold. Inside the first connecting pipe 6, the first flow control valve 7 is located between the first cooling pipe 3 and the second cooling pipe 4, and can accurately control the coolant flow between these two cooling pipes. By adjusting this flow, the cooling effect of this section can be effectively adjusted to ensure that the mold can be cooled appropriately in this area. At the same time, the second flow control valve 8 is arranged between the second cooling pipe 4 and the third cooling pipe 5 and plays a similar role. The coolant flow between these two cooling pipes can be adjusted according to actual needs, so as to realize the cooling control of different sections and meet the different requirements of different parts of the mold for the cooling degree.

[0032] On the other hand, the diameters of the multiple circular pipes 9 gradually increase from inside to outside, forming a unique cooling layout. A plurality of second connecting pipes 10 are connected and communicated inside the multiple circular pipes 9. One end of each second connecting pipe 10 is connected and communicated with the third cooling pipe 5. In this way, the coolant can flow smoothly from the third cooling pipe 5 into the circular pipes 9 to cool the bottom of the mold specifically, which can ensure that the bottom of the mold can also be fully cooled and avoid affecting the overall performance and service life of the mold due to insufficient bottom cooling.

[0033] On one side of the mold cavity 2, there are two circulating pumps 11. One end of one circulating pump 11 is connected to the first cooling pipe 3, which can continuously pump the coolant into the first cooling pipe 3, thus starting the first-stage cooling of the periphery of the mold. The circulating pump 11 ensures that the cooling process can proceed smoothly from the very beginning. One end of the other circulating pump 11 is connected to the third cooling pipe 5, and its main function is to ensure the circulation of the coolant in the entire cooling system. By continuously circulating the coolant, the cooling effect can be continuously stable, avoiding local overheating or uneven cooling caused by the stagnation of the coolant.

[0034] The first cooling pipe 3, the second cooling pipe 4, and the third cooling pipe 5 arranged in parallel by the cooling assembly are used to cool the periphery of the mold in sections. The flow control valve in the first connecting pipe 6 is used to accurately regulate the coolant flow in each section to meet the cooling requirements of different parts. It can perform personalized cooling according to the actual cooling requirements of different parts of the mold, greatly improving the pertinence and effectiveness of cooling, ensuring that each part of the mold can be cooled appropriately, and avoiding affecting the performance and quality of the mold due to improper cooling. At the same time, multiple circular pipes 9 with diameters gradually increasing from the inside to the outside are connected to the third cooling pipe 5 through the second connecting pipe 10 to cool the bottom of the mold specifically, ensuring sufficient cooling at the bottom, fully guaranteeing the cooling effect at the bottom of the mold, and preventing the shortening of the mold service life due to insufficient bottom cooling. In addition, the two circulating pumps 11 on one side of the mold cavity 2 are respectively connected to the first cooling pipe 3 and the third cooling pipe 5. One provides power for the initial cooling, and the other ensures the circulation of the coolant in the entire system, making the cooling effect continuously stable, effectively avoiding local overheating or uneven cooling, and thus improving the cooling effect and stability of the mold as a whole and extending the service life of the mold.

[0035] Refer to Figure 3 and Figure 4 , on the side of the mold cavity 2 far from the circulating pump 11, there is a cooling box 12. Inside the cooling box 12, there are two regulating pipes 13. One regulating pipe 13 is connected to the first cooling pipe 3, and the other regulating pipe 13 is connected to the third cooling pipe 5. The outer walls of the two regulating pipes 13 are provided with multiple heat dissipation fins 14, and the multiple heat dissipation fins 14 are evenly distributed along the horizontal direction.

[0036] By setting the cooling box 12, the regulating pipes 13 inside the box are respectively connected to the first cooling pipe 3 and the third cooling pipe 5, and the outer walls of the regulating pipes 13 are provided with multiple heat dissipation fins 14 evenly distributed along the horizontal direction. In this way, the coolant passing through can be cooled twice. The heat dissipation fins 14 increase the contact area with the air, efficiently dissipate the heat in the coolant, improve the cooling effect, and ensure that the coolant continuously provides effective cooling for the mold.

[0037] Refer to Figure 3, mounting rings 15 are sleeved on the outer walls of the first cooling pipe 3 and the third cooling pipe 5, and a fixing base 16 is provided on one side of each mounting ring 15. Each fixing base 16 is welded to the inner wall of the mold cavity 2.

[0038] The stability of the cooling pipe can be enhanced through the mounting ring 15, the position of the cooling pipe can be fixed, preventing it from shaking or displacing during the operation of the cooling system, ensuring consistent and reliable cooling effect. At the same time, it is also convenient for maintenance and repair. The fixing base 16 makes the position of the cooling pipe clear, facilitating the maintenance personnel to quickly locate it.

[0039] Working principle: First of all, the first cooling pipe 3, the second cooling pipe 4 and the third cooling pipe 5 arranged in parallel jointly undertake the task of segmented cooling around the mold. Inside the first connecting pipe 6, the first flow control valve 7 is located between the first cooling pipe 3 and the second cooling pipe 4, and can accurately control the coolant flow between these two cooling pipes. By adjusting this flow, the cooling effect of this section can be effectively adjusted to ensure that the mold can be cooled appropriately in this area. At the same time, the second flow control valve 8 is arranged between the second cooling pipe 4 and the third cooling pipe 5, playing a similar role, and can adjust the coolant flow between these two cooling pipes according to actual needs, so as to realize the cooling control of different sections and meet the different requirements of different parts of the mold for the cooling degree.

[0040] On the other hand, the diameters of the multiple circular pipes 9 gradually increase from the inside to the outside, forming a unique cooling layout. The interiors of the multiple circular pipes 9 are connected to multiple second connecting pipes 10. One end of each second connecting pipe 10 is connected to the third cooling pipe 5. In this way, the coolant can flow smoothly from the third cooling pipe 5 into the circular pipes 9 to cool the bottom of the mold specifically, which can ensure that the bottom of the mold can also be fully cooled, avoiding affecting the overall performance and service life of the mold due to insufficient bottom cooling.

[0041] Two circulating pumps 11 are provided on one side of the mold cavity 2. One end of one circulating pump 11 is connected to the first cooling pipe 3, and it can continuously pump the coolant into the first cooling pipe 3, thus starting the first-stage cooling around the mold. Through the circulating pump 11, it is ensured that the cooling process can proceed smoothly from the very beginning. The other end of the other circulating pump 11 is connected to the third cooling pipe 5, and its main function is to ensure the circulation of the coolant in the entire cooling system. By continuously circulating the coolant, the cooling effect can be continuously stable, avoiding local overheating or uneven cooling caused by the stagnation of the coolant.

[0042] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A multi-stage cooling structure for a high-strength steel stamping die, comprising a body (1) and a die cavity (2), the die cavity (2) being located on one side of the body (1), characterized in that, A cavity is formed inside the body (1), and a cooling assembly is provided inside the cavity; The cooling assembly includes a first cooling pipe (3), a second cooling pipe (4), a third cooling pipe (5) and a circular pipe (9). The first cooling pipe (3), the second cooling pipe (4) and the third cooling pipe (5) are used for segmental cooling of the four sides of the mold, and the circular pipe (9) is used for cooling the bottom of the mold.

2. The multi-stage cooling structure of a high-strength steel stamping die according to claim 1, characterized in that: The first cooling pipe (3), the second cooling pipe (4) and the third cooling pipe (5) are arranged in parallel. A plurality of first connecting pipes (6) are provided inside the first cooling pipe (3), the second cooling pipe (4) and the third cooling pipe (5). One of the first connecting pipes (6) is communicated with the first cooling pipe (3), the second cooling pipe (4) and the third cooling pipe (5).

3. The multi-stage cooling structure of a high-strength steel stamping die according to claim 2, characterized in that: A first flow control valve (7) and a second flow control valve (8) are provided inside the first connecting pipe (6). The first flow control valve (7) is located between the first cooling pipe (3) and the second cooling pipe (4), and the second flow control valve (8) is located between the second cooling pipe (4) and the third cooling pipe (5).

4. The multi-stage cooling structure of a high-strength steel stamping die according to claim 1, wherein: The number of the circular pipes (9) is set to be multiple. The diameters of the multiple circular pipes (9) gradually increase from inside to outside. A plurality of second connecting pipes (10) are communicated inside the multiple circular pipes (9). One end of each second connecting pipe (10) is communicated with the third cooling pipe (5).

5. The multi-stage cooling structure of a high-strength steel stamping die according to claim 1, characterized in that: Two circulation pumps (11) are provided on one side of the mold cavity (2). One end of one circulation pump (11) is communicated with the first cooling pipe (3), and one end of the other circulation pump (11) is communicated with the third cooling pipe (5).

6. The multi-stage cooling structure of a high-strength steel stamping die according to claim 1, characterized in that: A cooling box (12) is provided on the side of the mold cavity (2) away from the circulation pump (11). Two adjusting pipes (13) are provided inside the cooling box (12). One of the adjusting pipes (13) is communicated with the first cooling pipe (3), and the other adjusting pipe (13) is communicated with the third cooling pipe (5).

7. The multi-stage cooling structure of a high-strength steel stamping die according to claim 6, characterized in that: A plurality of heat dissipation fins (14) are provided on the outer walls of the two adjusting pipes (13). The plurality of heat dissipation fins (14) are evenly distributed in the horizontal direction.

8. The multi-stage cooling structure of a high-strength steel stamping die according to claim 1, characterized in that: A plurality of mounting ring buckles (15) are sleeved on the outer walls of the first cooling pipe (3) and the third cooling pipe (5). A fixing seat (16) is provided on one side of each mounting ring buckle (15). Each fixing seat (16) is welded to the inner wall of the mold cavity (2).

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